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Finding the Fourth Proportional to 56,498.40, 84,747.60 and 34,355.20

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Solution

The fourth proportional to 56,498.40, 84,747.60 and 34,355.20 is: 51,532.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,498.40 : 84,747.60 = 34,355.20 : x
  2. Step 2: Convert to fraction form
    56,498.40/84,747.60 = 34,355.20/x
  3. Step 3: Cross multiply
    56,498.40x = 84,747.60 × 34,355.20
  4. Step 4: Simplify right side
    56,498.40x = 2,911,520,747.52
  5. Step 5: Solve for x
    x = 2,911,520,747.52/56,498.40
  6. Step 6: Final answer
    x = 51,532.80

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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.