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Finding the Fourth Proportional to 9,983.48, 13,773.86 and 6,449.08

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Solution

The fourth proportional to 9,983.48, 13,773.86 and 6,449.08 is: 8,897.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,983.48 : 13,773.86 = 6,449.08 : x
  2. Step 2: Convert to fraction form
    9,983.48/13,773.86 = 6,449.08/x
  3. Step 3: Cross multiply
    9,983.48x = 13,773.86 × 6,449.08
  4. Step 4: Simplify right side
    9,983.48x = 88,828,725.05
  5. Step 5: Solve for x
    x = 88,828,725.05/9,983.48
  6. Step 6: Final answer
    x = 8,897.57

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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.