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Finding the Fourth Proportional to 8,886.93, 12,174.92 and 8,554.56

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Solution

The fourth proportional to 8,886.93, 12,174.92 and 8,554.56 is: 11,719.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.93 : 12,174.92 = 8,554.56 : x
  2. Step 2: Convert to fraction form
    8,886.93/12,174.92 = 8,554.56/x
  3. Step 3: Cross multiply
    8,886.93x = 12,174.92 × 8,554.56
  4. Step 4: Simplify right side
    8,886.93x = 104,151,040.86
  5. Step 5: Solve for x
    x = 104,151,040.86/8,886.93
  6. Step 6: Final answer
    x = 11,719.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.