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Finding the Fourth Proportional to 63,780.75, 95,675.18 and 19,410.77

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Solution

The fourth proportional to 63,780.75, 95,675.18 and 19,410.77 is: 29,117.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,780.75 : 95,675.18 = 19,410.77 : x
  2. Step 2: Convert to fraction form
    63,780.75/95,675.18 = 19,410.77/x
  3. Step 3: Cross multiply
    63,780.75x = 95,675.18 × 19,410.77
  4. Step 4: Simplify right side
    63,780.75x = 1,857,129,055.82
  5. Step 5: Solve for x
    x = 1,857,129,055.82/63,780.75
  6. Step 6: Final answer
    x = 29,117.39

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1.5x scale

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.