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Finding the Fourth Proportional to 8,878.55, 12,251.98 and 5,099.05

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Solution

The fourth proportional to 8,878.55, 12,251.98 and 5,099.05 is: 7,036.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.55 : 12,251.98 = 5,099.05 : x
  2. Step 2: Convert to fraction form
    8,878.55/12,251.98 = 5,099.05/x
  3. Step 3: Cross multiply
    8,878.55x = 12,251.98 × 5,099.05
  4. Step 4: Simplify right side
    8,878.55x = 62,473,415.24
  5. Step 5: Solve for x
    x = 62,473,415.24/8,878.55
  6. Step 6: Final answer
    x = 7,036.45

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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.