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Finding the Fourth Proportional to 26,334.60, 39,501.90 and 13,212.60

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Solution

The fourth proportional to 26,334.60, 39,501.90 and 13,212.60 is: 19,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,334.60 : 39,501.90 = 13,212.60 : x
  2. Step 2: Convert to fraction form
    26,334.60/39,501.90 = 13,212.60/x
  3. Step 3: Cross multiply
    26,334.60x = 39,501.90 × 13,212.60
  4. Step 4: Simplify right side
    26,334.60x = 521,922,803.94
  5. Step 5: Solve for x
    x = 521,922,803.94/26,334.60
  6. Step 6: Final answer
    x = 19,818.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.