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Finding the Fourth Proportional to 53,840.56, 80,710.92 and 49,411.12

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Solution

The fourth proportional to 53,840.56, 80,710.92 and 49,411.12 is: 74,070.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,840.56 : 80,710.92 = 49,411.12 : x
  2. Step 2: Convert to fraction form
    53,840.56/80,710.92 = 49,411.12/x
  3. Step 3: Cross multiply
    53,840.56x = 80,710.92 × 49,411.12
  4. Step 4: Simplify right side
    53,840.56x = 3,988,016,953.43
  5. Step 5: Solve for x
    x = 3,988,016,953.43/53,840.56
  6. Step 6: Final answer
    x = 74,070.87

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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.