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Finding the Fourth Proportional to 65,886.80, 90,923.82 and 35,672.13

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Solution

The fourth proportional to 65,886.80, 90,923.82 and 35,672.13 is: 49,227.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,886.80 : 90,923.82 = 35,672.13 : x
  2. Step 2: Convert to fraction form
    65,886.80/90,923.82 = 35,672.13/x
  3. Step 3: Cross multiply
    65,886.80x = 90,923.82 × 35,672.13
  4. Step 4: Simplify right side
    65,886.80x = 3,243,446,327.14
  5. Step 5: Solve for x
    x = 3,243,446,327.14/65,886.80
  6. Step 6: Final answer
    x = 49,227.56

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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.