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Finding the Fourth Proportional to 56,331, 84,440.56 and 31,382.44

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Solution

The fourth proportional to 56,331, 84,440.56 and 31,382.44 is: 47,042.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,331 : 84,440.56 = 31,382.44 : x
  2. Step 2: Convert to fraction form
    56,331/84,440.56 = 31,382.44/x
  3. Step 3: Cross multiply
    56,331x = 84,440.56 × 31,382.44
  4. Step 4: Simplify right side
    56,331x = 2,649,950,807.77
  5. Step 5: Solve for x
    x = 2,649,950,807.77/56,331
  6. Step 6: Final answer
    x = 47,042.50

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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.