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Finding the Fourth Proportional to 45,588.48, 68,382.72 and 36,412.80

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Solution

The fourth proportional to 45,588.48, 68,382.72 and 36,412.80 is: 54,619.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,588.48 : 68,382.72 = 36,412.80 : x
  2. Step 2: Convert to fraction form
    45,588.48/68,382.72 = 36,412.80/x
  3. Step 3: Cross multiply
    45,588.48x = 68,382.72 × 36,412.80
  4. Step 4: Simplify right side
    45,588.48x = 2,490,006,306.82
  5. Step 5: Solve for x
    x = 2,490,006,306.82/45,588.48
  6. Step 6: Final answer
    x = 54,619.20

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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.