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Finding the Fourth Proportional to 15,861.60, 23,760.11 and 7,516.32

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Solution

The fourth proportional to 15,861.60, 23,760.11 and 7,516.32 is: 11,259.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,861.60 : 23,760.11 = 7,516.32 : x
  2. Step 2: Convert to fraction form
    15,861.60/23,760.11 = 7,516.32/x
  3. Step 3: Cross multiply
    15,861.60x = 23,760.11 × 7,516.32
  4. Step 4: Simplify right side
    15,861.60x = 178,588,552.41
  5. Step 5: Solve for x
    x = 178,588,552.41/15,861.60
  6. Step 6: Final answer
    x = 11,259.18

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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.