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Finding the Fourth Proportional to 28,753.57, 43,129.95 and 9,033.31

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Solution

The fourth proportional to 28,753.57, 43,129.95 and 9,033.31 is: 13,549.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,753.57 : 43,129.95 = 9,033.31 : x
  2. Step 2: Convert to fraction form
    28,753.57/43,129.95 = 9,033.31/x
  3. Step 3: Cross multiply
    28,753.57x = 43,129.95 × 9,033.31
  4. Step 4: Simplify right side
    28,753.57x = 389,606,208.63
  5. Step 5: Solve for x
    x = 389,606,208.63/28,753.57
  6. Step 6: Final answer
    x = 13,549.84

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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.