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Finding the Fourth Proportional to 28,246.52, 42,360.48 and 9,521.52

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Solution

The fourth proportional to 28,246.52, 42,360.48 and 9,521.52 is: 14,279.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.52 : 42,360.48 = 9,521.52 : x
  2. Step 2: Convert to fraction form
    28,246.52/42,360.48 = 9,521.52/x
  3. Step 3: Cross multiply
    28,246.52x = 42,360.48 × 9,521.52
  4. Step 4: Simplify right side
    28,246.52x = 403,336,157.53
  5. Step 5: Solve for x
    x = 403,336,157.53/28,246.52
  6. Step 6: Final answer
    x = 14,279.15

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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.