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Finding the Fourth Proportional to 56,951.70, 85,427.34 and 15,398.70

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Solution

The fourth proportional to 56,951.70, 85,427.34 and 15,398.70 is: 23,097.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,951.70 : 85,427.34 = 15,398.70 : x
  2. Step 2: Convert to fraction form
    56,951.70/85,427.34 = 15,398.70/x
  3. Step 3: Cross multiply
    56,951.70x = 85,427.34 × 15,398.70
  4. Step 4: Simplify right side
    56,951.70x = 1,315,469,980.46
  5. Step 5: Solve for x
    x = 1,315,469,980.46/56,951.70
  6. Step 6: Final answer
    x = 23,097.99

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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.