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Finding the Fourth Proportional to 65,870.80, 98,824.66 and 26,455.56

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Solution

The fourth proportional to 65,870.80, 98,824.66 and 26,455.56 is: 39,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,870.80 : 98,824.66 = 26,455.56 : x
  2. Step 2: Convert to fraction form
    65,870.80/98,824.66 = 26,455.56/x
  3. Step 3: Cross multiply
    65,870.80x = 98,824.66 × 26,455.56
  4. Step 4: Simplify right side
    65,870.80x = 2,614,461,722.11
  5. Step 5: Solve for x
    x = 2,614,461,722.11/65,870.80
  6. Step 6: Final answer
    x = 39,690.75

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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.