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Finding the Fourth Proportional to 8,876.70, 13,302.90 and 7,236.45

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Solution

The fourth proportional to 8,876.70, 13,302.90 and 7,236.45 is: 10,844.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,876.70 : 13,302.90 = 7,236.45 : x
  2. Step 2: Convert to fraction form
    8,876.70/13,302.90 = 7,236.45/x
  3. Step 3: Cross multiply
    8,876.70x = 13,302.90 × 7,236.45
  4. Step 4: Simplify right side
    8,876.70x = 96,265,770.71
  5. Step 5: Solve for x
    x = 96,265,770.71/8,876.70
  6. Step 6: Final answer
    x = 10,844.77

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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.