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Finding the Fourth Proportional to 8,588.64, 12,882.96 and 4,690.92

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Solution

The fourth proportional to 8,588.64, 12,882.96 and 4,690.92 is: 7,036.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,588.64 : 12,882.96 = 4,690.92 : x
  2. Step 2: Convert to fraction form
    8,588.64/12,882.96 = 4,690.92/x
  3. Step 3: Cross multiply
    8,588.64x = 12,882.96 × 4,690.92
  4. Step 4: Simplify right side
    8,588.64x = 60,432,934.72
  5. Step 5: Solve for x
    x = 60,432,934.72/8,588.64
  6. Step 6: Final answer
    x = 7,036.38

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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.