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Finding the Fourth Proportional to 56,775.30, 78,349.92 and 32,915.82

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Solution

The fourth proportional to 56,775.30, 78,349.92 and 32,915.82 is: 45,423.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,775.30 : 78,349.92 = 32,915.82 : x
  2. Step 2: Convert to fraction form
    56,775.30/78,349.92 = 32,915.82/x
  3. Step 3: Cross multiply
    56,775.30x = 78,349.92 × 32,915.82
  4. Step 4: Simplify right side
    56,775.30x = 2,578,951,863.73
  5. Step 5: Solve for x
    x = 2,578,951,863.73/56,775.30
  6. Step 6: Final answer
    x = 45,423.84

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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.