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Finding the Fourth Proportional to 55,661.52, 76,768.11 and 48,932.76

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Solution

The fourth proportional to 55,661.52, 76,768.11 and 48,932.76 is: 67,487.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,661.52 : 76,768.11 = 48,932.76 : x
  2. Step 2: Convert to fraction form
    55,661.52/76,768.11 = 48,932.76/x
  3. Step 3: Cross multiply
    55,661.52x = 76,768.11 × 48,932.76
  4. Step 4: Simplify right side
    55,661.52x = 3,756,475,502.28
  5. Step 5: Solve for x
    x = 3,756,475,502.28/55,661.52
  6. Step 6: Final answer
    x = 67,487.84

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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.