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Finding the Fourth Proportional to 61,760.64, 85,186.32 and 37,898.88

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Solution

The fourth proportional to 61,760.64, 85,186.32 and 37,898.88 is: 52,273.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,760.64 : 85,186.32 = 37,898.88 : x
  2. Step 2: Convert to fraction form
    61,760.64/85,186.32 = 37,898.88/x
  3. Step 3: Cross multiply
    61,760.64x = 85,186.32 × 37,898.88
  4. Step 4: Simplify right side
    61,760.64x = 3,228,466,119.32
  5. Step 5: Solve for x
    x = 3,228,466,119.32/61,760.64
  6. Step 6: Final answer
    x = 52,273.84

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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.