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Finding the Fourth Proportional to 56,891.76, 85,337.62 and 15,338.76

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Solution

The fourth proportional to 56,891.76, 85,337.62 and 15,338.76 is: 23,008.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,891.76 : 85,337.62 = 15,338.76 : x
  2. Step 2: Convert to fraction form
    56,891.76/85,337.62 = 15,338.76/x
  3. Step 3: Cross multiply
    56,891.76x = 85,337.62 × 15,338.76
  4. Step 4: Simplify right side
    56,891.76x = 1,308,973,272.15
  5. Step 5: Solve for x
    x = 1,308,973,272.15/56,891.76
  6. Step 6: Final answer
    x = 23,008.13

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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.