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Finding the Fourth Proportional to 62,390.25, 93,578.49 and 15,643.13

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Solution

The fourth proportional to 62,390.25, 93,578.49 and 15,643.13 is: 23,462.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,390.25 : 93,578.49 = 15,643.13 : x
  2. Step 2: Convert to fraction form
    62,390.25/93,578.49 = 15,643.13/x
  3. Step 3: Cross multiply
    62,390.25x = 93,578.49 × 15,643.13
  4. Step 4: Simplify right side
    62,390.25x = 1,463,860,016.38
  5. Step 5: Solve for x
    x = 1,463,860,016.38/62,390.25
  6. Step 6: Final answer
    x = 23,462.96

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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.