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Finding the Fourth Proportional to 9,703.89, 13,375.85 and 6,554.61

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Solution

The fourth proportional to 9,703.89, 13,375.85 and 6,554.61 is: 9,034.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,703.89 : 13,375.85 = 6,554.61 : x
  2. Step 2: Convert to fraction form
    9,703.89/13,375.85 = 6,554.61/x
  3. Step 3: Cross multiply
    9,703.89x = 13,375.85 × 6,554.61
  4. Step 4: Simplify right side
    9,703.89x = 87,673,447.40
  5. Step 5: Solve for x
    x = 87,673,447.40/9,703.89
  6. Step 6: Final answer
    x = 9,034.88

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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.