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Finding the Fourth Proportional to 63,686.70, 87,880.66 and 36,825.14

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Solution

The fourth proportional to 63,686.70, 87,880.66 and 36,825.14 is: 50,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,686.70 : 87,880.66 = 36,825.14 : x
  2. Step 2: Convert to fraction form
    63,686.70/87,880.66 = 36,825.14/x
  3. Step 3: Cross multiply
    63,686.70x = 87,880.66 × 36,825.14
  4. Step 4: Simplify right side
    63,686.70x = 3,236,216,984.26
  5. Step 5: Solve for x
    x = 3,236,216,984.26/63,686.70
  6. Step 6: Final answer
    x = 50,814.65

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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.