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Finding the Fourth Proportional to 8,864.80, 12,233.10 and 5,328.34

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Solution

The fourth proportional to 8,864.80, 12,233.10 and 5,328.34 is: 7,352.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,864.80 : 12,233.10 = 5,328.34 : x
  2. Step 2: Convert to fraction form
    8,864.80/12,233.10 = 5,328.34/x
  3. Step 3: Cross multiply
    8,864.80x = 12,233.10 × 5,328.34
  4. Step 4: Simplify right side
    8,864.80x = 65,182,116.05
  5. Step 5: Solve for x
    x = 65,182,116.05/8,864.80
  6. Step 6: Final answer
    x = 7,352.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.