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Finding the Fourth Proportional to 60,404.70, 90,639.45 and 25,347.90

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Solution

The fourth proportional to 60,404.70, 90,639.45 and 25,347.90 is: 38,035.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,404.70 : 90,639.45 = 25,347.90 : x
  2. Step 2: Convert to fraction form
    60,404.70/90,639.45 = 25,347.90/x
  3. Step 3: Cross multiply
    60,404.70x = 90,639.45 × 25,347.90
  4. Step 4: Simplify right side
    60,404.70x = 2,297,519,714.66
  5. Step 5: Solve for x
    x = 2,297,519,714.66/60,404.70
  6. Step 6: Final answer
    x = 38,035.45

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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.