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Finding the Fourth Proportional to 8,589.93, 12,886.92 and 2,666.52

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Solution

The fourth proportional to 8,589.93, 12,886.92 and 2,666.52 is: 4,000.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,589.93 : 12,886.92 = 2,666.52 : x
  2. Step 2: Convert to fraction form
    8,589.93/12,886.92 = 2,666.52/x
  3. Step 3: Cross multiply
    8,589.93x = 12,886.92 × 2,666.52
  4. Step 4: Simplify right side
    8,589.93x = 34,363,186.10
  5. Step 5: Solve for x
    x = 34,363,186.10/8,589.93
  6. Step 6: Final answer
    x = 4,000.40

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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.