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Finding the Fourth Proportional to 8,917.73, 12,302.39 and 5,774.93

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Solution

The fourth proportional to 8,917.73, 12,302.39 and 5,774.93 is: 7,966.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,917.73 : 12,302.39 = 5,774.93 : x
  2. Step 2: Convert to fraction form
    8,917.73/12,302.39 = 5,774.93/x
  3. Step 3: Cross multiply
    8,917.73x = 12,302.39 × 5,774.93
  4. Step 4: Simplify right side
    8,917.73x = 71,045,412.21
  5. Step 5: Solve for x
    x = 71,045,412.21/8,917.73
  6. Step 6: Final answer
    x = 7,966.76

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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.