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Finding the Fourth Proportional to 10,587.60, 15,876.60 and 4,011.60

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Solution

The fourth proportional to 10,587.60, 15,876.60 and 4,011.60 is: 6,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,587.60 : 15,876.60 = 4,011.60 : x
  2. Step 2: Convert to fraction form
    10,587.60/15,876.60 = 4,011.60/x
  3. Step 3: Cross multiply
    10,587.60x = 15,876.60 × 4,011.60
  4. Step 4: Simplify right side
    10,587.60x = 63,690,568.56
  5. Step 5: Solve for x
    x = 63,690,568.56/10,587.60
  6. Step 6: Final answer
    x = 6,015.58

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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.