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Finding the Fourth Proportional to 8,353.16, 12,535.80 and 6,729.32

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Solution

The fourth proportional to 8,353.16, 12,535.80 and 6,729.32 is: 10,098.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.16 : 12,535.80 = 6,729.32 : x
  2. Step 2: Convert to fraction form
    8,353.16/12,535.80 = 6,729.32/x
  3. Step 3: Cross multiply
    8,353.16x = 12,535.80 × 6,729.32
  4. Step 4: Simplify right side
    8,353.16x = 84,357,409.66
  5. Step 5: Solve for x
    x = 84,357,409.66/8,353.16
  6. Step 6: Final answer
    x = 10,098.86

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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.