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Finding the Fourth Proportional to 8,951.16, 12,345.30 and 6,433.68

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Solution

The fourth proportional to 8,951.16, 12,345.30 and 6,433.68 is: 8,873.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,951.16 : 12,345.30 = 6,433.68 : x
  2. Step 2: Convert to fraction form
    8,951.16/12,345.30 = 6,433.68/x
  3. Step 3: Cross multiply
    8,951.16x = 12,345.30 × 6,433.68
  4. Step 4: Simplify right side
    8,951.16x = 79,425,709.70
  5. Step 5: Solve for x
    x = 79,425,709.70/8,951.16
  6. Step 6: Final answer
    x = 8,873.23

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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.