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Finding the Fourth Proportional to 8,827.90, 12,179.06 and 5,049.05

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Solution

The fourth proportional to 8,827.90, 12,179.06 and 5,049.05 is: 6,965.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,827.90 : 12,179.06 = 5,049.05 : x
  2. Step 2: Convert to fraction form
    8,827.90/12,179.06 = 5,049.05/x
  3. Step 3: Cross multiply
    8,827.90x = 12,179.06 × 5,049.05
  4. Step 4: Simplify right side
    8,827.90x = 61,492,684.19
  5. Step 5: Solve for x
    x = 61,492,684.19/8,827.90
  6. Step 6: Final answer
    x = 6,965.72

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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.