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Finding the Fourth Proportional to 9,867.11, 14,730.43 and 9,521.14

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Solution

The fourth proportional to 9,867.11, 14,730.43 and 9,521.14 is: 14,213.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,867.11 : 14,730.43 = 9,521.14 : x
  2. Step 2: Convert to fraction form
    9,867.11/14,730.43 = 9,521.14/x
  3. Step 3: Cross multiply
    9,867.11x = 14,730.43 × 9,521.14
  4. Step 4: Simplify right side
    9,867.11x = 140,250,425.66
  5. Step 5: Solve for x
    x = 140,250,425.66/9,867.11
  6. Step 6: Final answer
    x = 14,213.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.