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Finding the Fourth Proportional to 8,654.07, 12,981.11 and 4,953.72

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Solution

The fourth proportional to 8,654.07, 12,981.11 and 4,953.72 is: 7,430.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,654.07 : 12,981.11 = 4,953.72 : x
  2. Step 2: Convert to fraction form
    8,654.07/12,981.11 = 4,953.72/x
  3. Step 3: Cross multiply
    8,654.07x = 12,981.11 × 4,953.72
  4. Step 4: Simplify right side
    8,654.07x = 64,304,759.46
  5. Step 5: Solve for x
    x = 64,304,759.46/8,654.07
  6. Step 6: Final answer
    x = 7,430.58

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Similar ratio
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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.