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Finding the Fourth Proportional to 8,948.32, 12,351.06 and 5,589.08

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Solution

The fourth proportional to 8,948.32, 12,351.06 and 5,589.08 is: 7,714.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,948.32 : 12,351.06 = 5,589.08 : x
  2. Step 2: Convert to fraction form
    8,948.32/12,351.06 = 5,589.08/x
  3. Step 3: Cross multiply
    8,948.32x = 12,351.06 × 5,589.08
  4. Step 4: Simplify right side
    8,948.32x = 69,031,062.42
  5. Step 5: Solve for x
    x = 69,031,062.42/8,948.32
  6. Step 6: Final answer
    x = 7,714.42

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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.