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Finding the Fourth Proportional to 15,158.32, 22,731.16 and 8,930.88

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Solution

The fourth proportional to 15,158.32, 22,731.16 and 8,930.88 is: 13,392.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,158.32 : 22,731.16 = 8,930.88 : x
  2. Step 2: Convert to fraction form
    15,158.32/22,731.16 = 8,930.88/x
  3. Step 3: Cross multiply
    15,158.32x = 22,731.16 × 8,930.88
  4. Step 4: Simplify right side
    15,158.32x = 203,009,262.22
  5. Step 5: Solve for x
    x = 203,009,262.22/15,158.32
  6. Step 6: Final answer
    x = 13,392.60

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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.