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Finding the Fourth Proportional to 62,419.40, 86,114.57 and 39,754.33

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Solution

The fourth proportional to 62,419.40, 86,114.57 and 39,754.33 is: 54,845.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,419.40 : 86,114.57 = 39,754.33 : x
  2. Step 2: Convert to fraction form
    62,419.40/86,114.57 = 39,754.33/x
  3. Step 3: Cross multiply
    62,419.40x = 86,114.57 × 39,754.33
  4. Step 4: Simplify right side
    62,419.40x = 3,423,426,619.53
  5. Step 5: Solve for x
    x = 3,423,426,619.53/62,419.40
  6. Step 6: Final answer
    x = 54,845.56

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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.