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Finding the Fourth Proportional to 66,595.80, 91,902.78 and 36,381.18

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Solution

The fourth proportional to 66,595.80, 91,902.78 and 36,381.18 is: 50,206.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,595.80 : 91,902.78 = 36,381.18 : x
  2. Step 2: Convert to fraction form
    66,595.80/91,902.78 = 36,381.18/x
  3. Step 3: Cross multiply
    66,595.80x = 91,902.78 × 36,381.18
  4. Step 4: Simplify right side
    66,595.80x = 3,343,531,581.68
  5. Step 5: Solve for x
    x = 3,343,531,581.68/66,595.80
  6. Step 6: Final answer
    x = 50,206.34

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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.