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Finding the Fourth Proportional to 7,886.16, 11,829.19 and 2,952.30

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Solution

The fourth proportional to 7,886.16, 11,829.19 and 2,952.30 is: 4,428.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886.16 : 11,829.19 = 2,952.30 : x
  2. Step 2: Convert to fraction form
    7,886.16/11,829.19 = 2,952.30/x
  3. Step 3: Cross multiply
    7,886.16x = 11,829.19 × 2,952.30
  4. Step 4: Simplify right side
    7,886.16x = 34,923,293.61
  5. Step 5: Solve for x
    x = 34,923,293.61/7,886.16
  6. Step 6: Final answer
    x = 4,428.43

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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.