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Finding the Fourth Proportional to 56,663.70, 84,995.55 and 19,727.70

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Solution

The fourth proportional to 56,663.70, 84,995.55 and 19,727.70 is: 29,591.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,663.70 : 84,995.55 = 19,727.70 : x
  2. Step 2: Convert to fraction form
    56,663.70/84,995.55 = 19,727.70/x
  3. Step 3: Cross multiply
    56,663.70x = 84,995.55 × 19,727.70
  4. Step 4: Simplify right side
    56,663.70x = 1,676,766,711.74
  5. Step 5: Solve for x
    x = 1,676,766,711.74/56,663.70
  6. Step 6: Final answer
    x = 29,591.55

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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.