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Finding the Fourth Proportional to 8,932.04, 12,326.16 and 5,155.16

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Solution

The fourth proportional to 8,932.04, 12,326.16 and 5,155.16 is: 7,114.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,932.04 : 12,326.16 = 5,155.16 : x
  2. Step 2: Convert to fraction form
    8,932.04/12,326.16 = 5,155.16/x
  3. Step 3: Cross multiply
    8,932.04x = 12,326.16 × 5,155.16
  4. Step 4: Simplify right side
    8,932.04x = 63,543,326.99
  5. Step 5: Solve for x
    x = 63,543,326.99/8,932.04
  6. Step 6: Final answer
    x = 7,114.09

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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.