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Finding the Fourth Proportional to 60,695.20, 91,010.40 and 25,595.20

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Solution

The fourth proportional to 60,695.20, 91,010.40 and 25,595.20 is: 38,379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,695.20 : 91,010.40 = 25,595.20 : x
  2. Step 2: Convert to fraction form
    60,695.20/91,010.40 = 25,595.20/x
  3. Step 3: Cross multiply
    60,695.20x = 91,010.40 × 25,595.20
  4. Step 4: Simplify right side
    60,695.20x = 2,329,429,390.08
  5. Step 5: Solve for x
    x = 2,329,429,390.08/60,695.20
  6. Step 6: Final answer
    x = 38,379.14

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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.