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Finding the Fourth Proportional to 8,758.38, 13,052.62 and 8,478.19

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Solution

The fourth proportional to 8,758.38, 13,052.62 and 8,478.19 is: 12,635.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.38 : 13,052.62 = 8,478.19 : x
  2. Step 2: Convert to fraction form
    8,758.38/13,052.62 = 8,478.19/x
  3. Step 3: Cross multiply
    8,758.38x = 13,052.62 × 8,478.19
  4. Step 4: Simplify right side
    8,758.38x = 110,662,522.01
  5. Step 5: Solve for x
    x = 110,662,522.01/8,758.38
  6. Step 6: Final answer
    x = 12,635.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.