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Finding the Fourth Proportional to 15,235.72, 22,812.42 and 9,957.64

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Solution

The fourth proportional to 15,235.72, 22,812.42 and 9,957.64 is: 14,909.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,235.72 : 22,812.42 = 9,957.64 : x
  2. Step 2: Convert to fraction form
    15,235.72/22,812.42 = 9,957.64/x
  3. Step 3: Cross multiply
    15,235.72x = 22,812.42 × 9,957.64
  4. Step 4: Simplify right side
    15,235.72x = 227,157,865.89
  5. Step 5: Solve for x
    x = 227,157,865.89/15,235.72
  6. Step 6: Final answer
    x = 14,909.56

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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.