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Finding the Fourth Proportional to 15,700.80, 23,551.21 and 5,838.80

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Solution

The fourth proportional to 15,700.80, 23,551.21 and 5,838.80 is: 8,758.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700.80 : 23,551.21 = 5,838.80 : x
  2. Step 2: Convert to fraction form
    15,700.80/23,551.21 = 5,838.80/x
  3. Step 3: Cross multiply
    15,700.80x = 23,551.21 × 5,838.80
  4. Step 4: Simplify right side
    15,700.80x = 137,510,694.49
  5. Step 5: Solve for x
    x = 137,510,694.49/15,700.80
  6. Step 6: Final answer
    x = 8,758.19

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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.