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Finding the Fourth Proportional to 65,888.25, 90,926.52 and 35,674.20

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Solution

The fourth proportional to 65,888.25, 90,926.52 and 35,674.20 is: 49,230.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,888.25 : 90,926.52 = 35,674.20 : x
  2. Step 2: Convert to fraction form
    65,888.25/90,926.52 = 35,674.20/x
  3. Step 3: Cross multiply
    65,888.25x = 90,926.52 × 35,674.20
  4. Step 4: Simplify right side
    65,888.25x = 3,243,730,859.78
  5. Step 5: Solve for x
    x = 3,243,730,859.78/65,888.25
  6. Step 6: Final answer
    x = 49,230.79

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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.