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Finding the Fourth Proportional to 8,833.56, 12,187.80 and 6,145.80

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Solution

The fourth proportional to 8,833.56, 12,187.80 and 6,145.80 is: 8,479.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,833.56 : 12,187.80 = 6,145.80 : x
  2. Step 2: Convert to fraction form
    8,833.56/12,187.80 = 6,145.80/x
  3. Step 3: Cross multiply
    8,833.56x = 12,187.80 × 6,145.80
  4. Step 4: Simplify right side
    8,833.56x = 74,903,781.24
  5. Step 5: Solve for x
    x = 74,903,781.24/8,833.56
  6. Step 6: Final answer
    x = 8,479.46

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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.