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Finding the Fourth Proportional to 9,681.80, 14,522.70 and 9,552.20

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Solution

The fourth proportional to 9,681.80, 14,522.70 and 9,552.20 is: 14,328.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,681.80 : 14,522.70 = 9,552.20 : x
  2. Step 2: Convert to fraction form
    9,681.80/14,522.70 = 9,552.20/x
  3. Step 3: Cross multiply
    9,681.80x = 14,522.70 × 9,552.20
  4. Step 4: Simplify right side
    9,681.80x = 138,723,734.94
  5. Step 5: Solve for x
    x = 138,723,734.94/9,681.80
  6. Step 6: Final answer
    x = 14,328.30

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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.