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Finding the Fourth Proportional to 28,352.88, 42,532.32 and 11,714.16

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Solution

The fourth proportional to 28,352.88, 42,532.32 and 11,714.16 is: 17,572.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,352.88 : 42,532.32 = 11,714.16 : x
  2. Step 2: Convert to fraction form
    28,352.88/42,532.32 = 11,714.16/x
  3. Step 3: Cross multiply
    28,352.88x = 42,532.32 × 11,714.16
  4. Step 4: Simplify right side
    28,352.88x = 498,230,401.65
  5. Step 5: Solve for x
    x = 498,230,401.65/28,352.88
  6. Step 6: Final answer
    x = 17,572.48

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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.