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Finding the Fourth Proportional to 56,445.80, 77,898.14 and 31,296.92

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Solution

The fourth proportional to 56,445.80, 77,898.14 and 31,296.92 is: 43,191.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,445.80 : 77,898.14 = 31,296.92 : x
  2. Step 2: Convert to fraction form
    56,445.80/77,898.14 = 31,296.92/x
  3. Step 3: Cross multiply
    56,445.80x = 77,898.14 × 31,296.92
  4. Step 4: Simplify right side
    56,445.80x = 2,437,971,855.73
  5. Step 5: Solve for x
    x = 2,437,971,855.73/56,445.80
  6. Step 6: Final answer
    x = 43,191.38

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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.