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Finding the Fourth Proportional to 62,665, 93,987.42 and 18,281.32

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Solution

The fourth proportional to 62,665, 93,987.42 and 18,281.32 is: 27,419.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,665 : 93,987.42 = 18,281.32 : x
  2. Step 2: Convert to fraction form
    62,665/93,987.42 = 18,281.32/x
  3. Step 3: Cross multiply
    62,665x = 93,987.42 × 18,281.32
  4. Step 4: Simplify right side
    62,665x = 1,718,214,100.99
  5. Step 5: Solve for x
    x = 1,718,214,100.99/62,665
  6. Step 6: Final answer
    x = 27,419.04

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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.