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Finding the Fourth Proportional to 8,885.73, 12,260.67 and 5,699.61

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Solution

The fourth proportional to 8,885.73, 12,260.67 and 5,699.61 is: 7,864.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,885.73 : 12,260.67 = 5,699.61 : x
  2. Step 2: Convert to fraction form
    8,885.73/12,260.67 = 5,699.61/x
  3. Step 3: Cross multiply
    8,885.73x = 12,260.67 × 5,699.61
  4. Step 4: Simplify right side
    8,885.73x = 69,881,037.34
  5. Step 5: Solve for x
    x = 69,881,037.34/8,885.73
  6. Step 6: Final answer
    x = 7,864.41

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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.