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Finding the Fourth Proportional to 63,178.62, 87,197.64 and 37,686.58

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Solution

The fourth proportional to 63,178.62, 87,197.64 and 37,686.58 is: 52,014.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,178.62 : 87,197.64 = 37,686.58 : x
  2. Step 2: Convert to fraction form
    63,178.62/87,197.64 = 37,686.58/x
  3. Step 3: Cross multiply
    63,178.62x = 87,197.64 × 37,686.58
  4. Step 4: Simplify right side
    63,178.62x = 3,286,180,835.67
  5. Step 5: Solve for x
    x = 3,286,180,835.67/63,178.62
  6. Step 6: Final answer
    x = 52,014.13

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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.