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Finding the Fourth Proportional to 10,693.80, 16,002.90 and 9,322.20

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Solution

The fourth proportional to 10,693.80, 16,002.90 and 9,322.20 is: 13,950.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,693.80 : 16,002.90 = 9,322.20 : x
  2. Step 2: Convert to fraction form
    10,693.80/16,002.90 = 9,322.20/x
  3. Step 3: Cross multiply
    10,693.80x = 16,002.90 × 9,322.20
  4. Step 4: Simplify right side
    10,693.80x = 149,182,234.38
  5. Step 5: Solve for x
    x = 149,182,234.38/10,693.80
  6. Step 6: Final answer
    x = 13,950.35

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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.