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Finding the Fourth Proportional to 63,021.74, 86,968.87 and 34,341.65

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Solution

The fourth proportional to 63,021.74, 86,968.87 and 34,341.65 is: 47,390.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,021.74 : 86,968.87 = 34,341.65 : x
  2. Step 2: Convert to fraction form
    63,021.74/86,968.87 = 34,341.65/x
  3. Step 3: Cross multiply
    63,021.74x = 86,968.87 × 34,341.65
  4. Step 4: Simplify right side
    63,021.74x = 2,986,654,215.87
  5. Step 5: Solve for x
    x = 2,986,654,215.87/63,021.74
  6. Step 6: Final answer
    x = 47,390.86

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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.