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Finding the Fourth Proportional to 28,049.16, 42,073.40 and 8,059.12

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Solution

The fourth proportional to 28,049.16, 42,073.40 and 8,059.12 is: 12,088.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,049.16 : 42,073.40 = 8,059.12 : x
  2. Step 2: Convert to fraction form
    28,049.16/42,073.40 = 8,059.12/x
  3. Step 3: Cross multiply
    28,049.16x = 42,073.40 × 8,059.12
  4. Step 4: Simplify right side
    28,049.16x = 339,074,590.04
  5. Step 5: Solve for x
    x = 339,074,590.04/28,049.16
  6. Step 6: Final answer
    x = 12,088.58

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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.