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Finding the Fourth Proportional to 9,866.07, 13,610.12 and 6,679.47

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Solution

The fourth proportional to 9,866.07, 13,610.12 and 6,679.47 is: 9,214.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,866.07 : 13,610.12 = 6,679.47 : x
  2. Step 2: Convert to fraction form
    9,866.07/13,610.12 = 6,679.47/x
  3. Step 3: Cross multiply
    9,866.07x = 13,610.12 × 6,679.47
  4. Step 4: Simplify right side
    9,866.07x = 90,908,354.84
  5. Step 5: Solve for x
    x = 90,908,354.84/9,866.07
  6. Step 6: Final answer
    x = 9,214.24

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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.