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Finding the Fourth Proportional to 67,020.68, 92,484.92 and 38,340.92

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Solution

The fourth proportional to 67,020.68, 92,484.92 and 38,340.92 is: 52,908.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,020.68 : 92,484.92 = 38,340.92 : x
  2. Step 2: Convert to fraction form
    67,020.68/92,484.92 = 38,340.92/x
  3. Step 3: Cross multiply
    67,020.68x = 92,484.92 × 38,340.92
  4. Step 4: Simplify right side
    67,020.68x = 3,545,956,918.93
  5. Step 5: Solve for x
    x = 3,545,956,918.93/67,020.68
  6. Step 6: Final answer
    x = 52,908.40

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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.