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Finding the Fourth Proportional to 22,358.89, 30,851.63 and 12,925.63

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Solution

The fourth proportional to 22,358.89, 30,851.63 and 12,925.63 is: 17,835.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,358.89 : 30,851.63 = 12,925.63 : x
  2. Step 2: Convert to fraction form
    22,358.89/30,851.63 = 12,925.63/x
  3. Step 3: Cross multiply
    22,358.89x = 30,851.63 × 12,925.63
  4. Step 4: Simplify right side
    22,358.89x = 398,776,600.02
  5. Step 5: Solve for x
    x = 398,776,600.02/22,358.89
  6. Step 6: Final answer
    x = 17,835.26

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Half scale
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Double scale
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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.