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Finding the Fourth Proportional to 63,645.50, 87,830.88 and 35,353.82

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Solution

The fourth proportional to 63,645.50, 87,830.88 and 35,353.82 is: 48,788.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,645.50 : 87,830.88 = 35,353.82 : x
  2. Step 2: Convert to fraction form
    63,645.50/87,830.88 = 35,353.82/x
  3. Step 3: Cross multiply
    63,645.50x = 87,830.88 × 35,353.82
  4. Step 4: Simplify right side
    63,645.50x = 3,105,157,121.96
  5. Step 5: Solve for x
    x = 3,105,157,121.96/63,645.50
  6. Step 6: Final answer
    x = 48,788.32

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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.