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Finding the Fourth Proportional to 7,474.68, 11,210.16 and 2,280.48

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Solution

The fourth proportional to 7,474.68, 11,210.16 and 2,280.48 is: 3,420.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,474.68 : 11,210.16 = 2,280.48 : x
  2. Step 2: Convert to fraction form
    7,474.68/11,210.16 = 2,280.48/x
  3. Step 3: Cross multiply
    7,474.68x = 11,210.16 × 2,280.48
  4. Step 4: Simplify right side
    7,474.68x = 25,564,545.68
  5. Step 5: Solve for x
    x = 25,564,545.68/7,474.68
  6. Step 6: Final answer
    x = 3,420.15

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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.