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Finding the Fourth Proportional to 63,691.90, 95,513.55 and 19,303.90

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Solution

The fourth proportional to 63,691.90, 95,513.55 and 19,303.90 is: 28,948.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,691.90 : 95,513.55 = 19,303.90 : x
  2. Step 2: Convert to fraction form
    63,691.90/95,513.55 = 19,303.90/x
  3. Step 3: Cross multiply
    63,691.90x = 95,513.55 × 19,303.90
  4. Step 4: Simplify right side
    63,691.90x = 1,843,784,017.85
  5. Step 5: Solve for x
    x = 1,843,784,017.85/63,691.90
  6. Step 6: Final answer
    x = 28,948.49

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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.