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Finding the Fourth Proportional to 58,971.78, 88,359.12 and 25,641.90

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Solution

The fourth proportional to 58,971.78, 88,359.12 and 25,641.90 is: 38,420.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,971.78 : 88,359.12 = 25,641.90 : x
  2. Step 2: Convert to fraction form
    58,971.78/88,359.12 = 25,641.90/x
  3. Step 3: Cross multiply
    58,971.78x = 88,359.12 × 25,641.90
  4. Step 4: Simplify right side
    58,971.78x = 2,265,695,719.13
  5. Step 5: Solve for x
    x = 2,265,695,719.13/58,971.78
  6. Step 6: Final answer
    x = 38,420.00

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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.