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Finding the Fourth Proportional to 41,065.60, 61,588.68 and 18,865.12

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Solution

The fourth proportional to 41,065.60, 61,588.68 and 18,865.12 is: 28,293.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,065.60 : 61,588.68 = 18,865.12 : x
  2. Step 2: Convert to fraction form
    41,065.60/61,588.68 = 18,865.12/x
  3. Step 3: Cross multiply
    41,065.60x = 61,588.68 × 18,865.12
  4. Step 4: Simplify right side
    41,065.60x = 1,161,877,838.84
  5. Step 5: Solve for x
    x = 1,161,877,838.84/41,065.60
  6. Step 6: Final answer
    x = 28,293.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.