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Finding the Fourth Proportional to 62,419.60, 93,641.55 and 18,047.80

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Solution

The fourth proportional to 62,419.60, 93,641.55 and 18,047.80 is: 27,075.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,419.60 : 93,641.55 = 18,047.80 : x
  2. Step 2: Convert to fraction form
    62,419.60/93,641.55 = 18,047.80/x
  3. Step 3: Cross multiply
    62,419.60x = 93,641.55 × 18,047.80
  4. Step 4: Simplify right side
    62,419.60x = 1,690,023,966.09
  5. Step 5: Solve for x
    x = 1,690,023,966.09/62,419.60
  6. Step 6: Final answer
    x = 27,075.21

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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.