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Finding the Fourth Proportional to 63,885.17, 88,161.66 and 38,391.93

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Solution

The fourth proportional to 63,885.17, 88,161.66 and 38,391.93 is: 52,980.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,885.17 : 88,161.66 = 38,391.93 : x
  2. Step 2: Convert to fraction form
    63,885.17/88,161.66 = 38,391.93/x
  3. Step 3: Cross multiply
    63,885.17x = 88,161.66 × 38,391.93
  4. Step 4: Simplify right side
    63,885.17x = 3,384,696,265.18
  5. Step 5: Solve for x
    x = 3,384,696,265.18/63,885.17
  6. Step 6: Final answer
    x = 52,980.94

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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.