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Finding the Fourth Proportional to 56,757.98, 85,149.53 and 17,318.18

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Solution

The fourth proportional to 56,757.98, 85,149.53 and 17,318.18 is: 25,981.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,757.98 : 85,149.53 = 17,318.18 : x
  2. Step 2: Convert to fraction form
    56,757.98/85,149.53 = 17,318.18/x
  3. Step 3: Cross multiply
    56,757.98x = 85,149.53 × 17,318.18
  4. Step 4: Simplify right side
    56,757.98x = 1,474,634,887.46
  5. Step 5: Solve for x
    x = 1,474,634,887.46/56,757.98
  6. Step 6: Final answer
    x = 25,981.10

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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.