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Finding the Fourth Proportional to 8,959.84, 12,363.22 and 5,182.25

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Solution

The fourth proportional to 8,959.84, 12,363.22 and 5,182.25 is: 7,150.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.84 : 12,363.22 = 5,182.25 : x
  2. Step 2: Convert to fraction form
    8,959.84/12,363.22 = 5,182.25/x
  3. Step 3: Cross multiply
    8,959.84x = 12,363.22 × 5,182.25
  4. Step 4: Simplify right side
    8,959.84x = 64,069,268.44
  5. Step 5: Solve for x
    x = 64,069,268.44/8,959.84
  6. Step 6: Final answer
    x = 7,150.72

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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.