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Finding the Fourth Proportional to 9,995.10, 14,992.65 and 9,087.90

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Solution

The fourth proportional to 9,995.10, 14,992.65 and 9,087.90 is: 13,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,995.10 : 14,992.65 = 9,087.90 : x
  2. Step 2: Convert to fraction form
    9,995.10/14,992.65 = 9,087.90/x
  3. Step 3: Cross multiply
    9,995.10x = 14,992.65 × 9,087.90
  4. Step 4: Simplify right side
    9,995.10x = 136,251,703.94
  5. Step 5: Solve for x
    x = 136,251,703.94/9,995.10
  6. Step 6: Final answer
    x = 13,631.85

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Double scale
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Similar ratio
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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.