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Finding the Fourth Proportional to 8,829.11, 13,305.69 and 7,952.72

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Solution

The fourth proportional to 8,829.11, 13,305.69 and 7,952.72 is: 11,984.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,829.11 : 13,305.69 = 7,952.72 : x
  2. Step 2: Convert to fraction form
    8,829.11/13,305.69 = 7,952.72/x
  3. Step 3: Cross multiply
    8,829.11x = 13,305.69 × 7,952.72
  4. Step 4: Simplify right side
    8,829.11x = 105,816,360.45
  5. Step 5: Solve for x
    x = 105,816,360.45/8,829.11
  6. Step 6: Final answer
    x = 11,984.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.