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Finding the Fourth Proportional to 22,292.60, 30,762.90 and 13,334.76

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Solution

The fourth proportional to 22,292.60, 30,762.90 and 13,334.76 is: 18,401.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,292.60 : 30,762.90 = 13,334.76 : x
  2. Step 2: Convert to fraction form
    22,292.60/30,762.90 = 13,334.76/x
  3. Step 3: Cross multiply
    22,292.60x = 30,762.90 × 13,334.76
  4. Step 4: Simplify right side
    22,292.60x = 410,215,888.40
  5. Step 5: Solve for x
    x = 410,215,888.40/22,292.60
  6. Step 6: Final answer
    x = 18,401.44

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.