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Finding the Fourth Proportional to 8,305.17, 12,460.44 and 4,972.89

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Solution

The fourth proportional to 8,305.17, 12,460.44 and 4,972.89 is: 7,460.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.17 : 12,460.44 = 4,972.89 : x
  2. Step 2: Convert to fraction form
    8,305.17/12,460.44 = 4,972.89/x
  3. Step 3: Cross multiply
    8,305.17x = 12,460.44 × 4,972.89
  4. Step 4: Simplify right side
    8,305.17x = 61,964,397.47
  5. Step 5: Solve for x
    x = 61,964,397.47/8,305.17
  6. Step 6: Final answer
    x = 7,460.94

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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.