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Finding the Fourth Proportional to 10,590.87, 15,869.52 and 8,606.93

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Solution

The fourth proportional to 10,590.87, 15,869.52 and 8,606.93 is: 12,896.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,590.87 : 15,869.52 = 8,606.93 : x
  2. Step 2: Convert to fraction form
    10,590.87/15,869.52 = 8,606.93/x
  3. Step 3: Cross multiply
    10,590.87x = 15,869.52 × 8,606.93
  4. Step 4: Simplify right side
    10,590.87x = 136,587,768.43
  5. Step 5: Solve for x
    x = 136,587,768.43/10,590.87
  6. Step 6: Final answer
    x = 12,896.75

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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.