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Finding the Fourth Proportional to 5,722.20, 8,570.08 and 5,525.20

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Solution

The fourth proportional to 5,722.20, 8,570.08 and 5,525.20 is: 8,275.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,722.20 : 8,570.08 = 5,525.20 : x
  2. Step 2: Convert to fraction form
    5,722.20/8,570.08 = 5,525.20/x
  3. Step 3: Cross multiply
    5,722.20x = 8,570.08 × 5,525.20
  4. Step 4: Simplify right side
    5,722.20x = 47,351,406.02
  5. Step 5: Solve for x
    x = 47,351,406.02/5,722.20
  6. Step 6: Final answer
    x = 8,275.04

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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.