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Finding the Fourth Proportional to 56,616.70, 84,925.05 and 51,432.70

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Solution

The fourth proportional to 56,616.70, 84,925.05 and 51,432.70 is: 77,149.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,616.70 : 84,925.05 = 51,432.70 : x
  2. Step 2: Convert to fraction form
    56,616.70/84,925.05 = 51,432.70/x
  3. Step 3: Cross multiply
    56,616.70x = 84,925.05 × 51,432.70
  4. Step 4: Simplify right side
    56,616.70x = 4,367,924,619.14
  5. Step 5: Solve for x
    x = 4,367,924,619.14/56,616.70
  6. Step 6: Final answer
    x = 77,149.05

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1.5x scale

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.