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Finding the Fourth Proportional to 9,660.80, 14,462.40 and 5,763.20

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Solution

The fourth proportional to 9,660.80, 14,462.40 and 5,763.20 is: 8,627.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,660.80 : 14,462.40 = 5,763.20 : x
  2. Step 2: Convert to fraction form
    9,660.80/14,462.40 = 5,763.20/x
  3. Step 3: Cross multiply
    9,660.80x = 14,462.40 × 5,763.20
  4. Step 4: Simplify right side
    9,660.80x = 83,349,703.68
  5. Step 5: Solve for x
    x = 83,349,703.68/9,660.80
  6. Step 6: Final answer
    x = 8,627.62

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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.