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Finding the Fourth Proportional to 63,446.40, 87,598.80 and 56,710.44

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Solution

The fourth proportional to 63,446.40, 87,598.80 and 56,710.44 is: 78,298.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,446.40 : 87,598.80 = 56,710.44 : x
  2. Step 2: Convert to fraction form
    63,446.40/87,598.80 = 56,710.44/x
  3. Step 3: Cross multiply
    63,446.40x = 87,598.80 × 56,710.44
  4. Step 4: Simplify right side
    63,446.40x = 4,967,766,491.47
  5. Step 5: Solve for x
    x = 4,967,766,491.47/63,446.40
  6. Step 6: Final answer
    x = 78,298.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.