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Finding the Fourth Proportional to 63,611.60, 87,780.58 and 35,315.46

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Solution

The fourth proportional to 63,611.60, 87,780.58 and 35,315.46 is: 48,733.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,611.60 : 87,780.58 = 35,315.46 : x
  2. Step 2: Convert to fraction form
    63,611.60/87,780.58 = 35,315.46/x
  3. Step 3: Cross multiply
    63,611.60x = 87,780.58 × 35,315.46
  4. Step 4: Simplify right side
    63,611.60x = 3,100,011,385.19
  5. Step 5: Solve for x
    x = 3,100,011,385.19/63,611.60
  6. Step 6: Final answer
    x = 48,733.43

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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.