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Finding the Fourth Proportional to 10,875.72, 15,007.96 and 6,159.88

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Solution

The fourth proportional to 10,875.72, 15,007.96 and 6,159.88 is: 8,500.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,875.72 : 15,007.96 = 6,159.88 : x
  2. Step 2: Convert to fraction form
    10,875.72/15,007.96 = 6,159.88/x
  3. Step 3: Cross multiply
    10,875.72x = 15,007.96 × 6,159.88
  4. Step 4: Simplify right side
    10,875.72x = 92,447,232.64
  5. Step 5: Solve for x
    x = 92,447,232.64/10,875.72
  6. Step 6: Final answer
    x = 8,500.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.