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Finding the Fourth Proportional to 5,363.92, 8,041.20 and 4,322.08

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Solution

The fourth proportional to 5,363.92, 8,041.20 and 4,322.08 is: 6,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,363.92 : 8,041.20 = 4,322.08 : x
  2. Step 2: Convert to fraction form
    5,363.92/8,041.20 = 4,322.08/x
  3. Step 3: Cross multiply
    5,363.92x = 8,041.20 × 4,322.08
  4. Step 4: Simplify right side
    5,363.92x = 34,754,709.70
  5. Step 5: Solve for x
    x = 34,754,709.70/5,363.92
  6. Step 6: Final answer
    x = 6,479.35

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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.