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Finding the Fourth Proportional to 15,694.80, 23,542.20 and 9,133.80

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Solution

The fourth proportional to 15,694.80, 23,542.20 and 9,133.80 is: 13,700.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,694.80 : 23,542.20 = 9,133.80 : x
  2. Step 2: Convert to fraction form
    15,694.80/23,542.20 = 9,133.80/x
  3. Step 3: Cross multiply
    15,694.80x = 23,542.20 × 9,133.80
  4. Step 4: Simplify right side
    15,694.80x = 215,029,746.36
  5. Step 5: Solve for x
    x = 215,029,746.36/15,694.80
  6. Step 6: Final answer
    x = 13,700.70

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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.