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Finding the Fourth Proportional to 5,870.52, 8,785.92 and 5,712.56

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Solution

The fourth proportional to 5,870.52, 8,785.92 and 5,712.56 is: 8,549.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,870.52 : 8,785.92 = 5,712.56 : x
  2. Step 2: Convert to fraction form
    5,870.52/8,785.92 = 5,712.56/x
  3. Step 3: Cross multiply
    5,870.52x = 8,785.92 × 5,712.56
  4. Step 4: Simplify right side
    5,870.52x = 50,190,095.16
  5. Step 5: Solve for x
    x = 50,190,095.16/5,870.52
  6. Step 6: Final answer
    x = 8,549.51

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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.