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Finding the Fourth Proportional to 28,752.88, 43,129.28 and 9,032.96

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Solution

The fourth proportional to 28,752.88, 43,129.28 and 9,032.96 is: 13,549.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,752.88 : 43,129.28 = 9,032.96 : x
  2. Step 2: Convert to fraction form
    28,752.88/43,129.28 = 9,032.96/x
  3. Step 3: Cross multiply
    28,752.88x = 43,129.28 × 9,032.96
  4. Step 4: Simplify right side
    28,752.88x = 389,585,061.07
  5. Step 5: Solve for x
    x = 389,585,061.07/28,752.88
  6. Step 6: Final answer
    x = 13,549.43

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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.