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Finding the Fourth Proportional to 8,842.80, 13,264.20 and 5,329.20

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Solution

The fourth proportional to 8,842.80, 13,264.20 and 5,329.20 is: 7,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,842.80 : 13,264.20 = 5,329.20 : x
  2. Step 2: Convert to fraction form
    8,842.80/13,264.20 = 5,329.20/x
  3. Step 3: Cross multiply
    8,842.80x = 13,264.20 × 5,329.20
  4. Step 4: Simplify right side
    8,842.80x = 70,687,574.64
  5. Step 5: Solve for x
    x = 70,687,574.64/8,842.80
  6. Step 6: Final answer
    x = 7,993.80

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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.