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Finding the Fourth Proportional to 10,641.80, 14,685.90 and 6,167

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Solution

The fourth proportional to 10,641.80, 14,685.90 and 6,167 is: 8,510.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,641.80 : 14,685.90 = 6,167 : x
  2. Step 2: Convert to fraction form
    10,641.80/14,685.90 = 6,167/x
  3. Step 3: Cross multiply
    10,641.80x = 14,685.90 × 6,167
  4. Step 4: Simplify right side
    10,641.80x = 90,567,945.30
  5. Step 5: Solve for x
    x = 90,567,945.30/10,641.80
  6. Step 6: Final answer
    x = 8,510.59

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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.