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Finding the Fourth Proportional to 61,061.76, 84,290.64 and 41,968.92

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Solution

The fourth proportional to 61,061.76, 84,290.64 and 41,968.92 is: 57,934.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,061.76 : 84,290.64 = 41,968.92 : x
  2. Step 2: Convert to fraction form
    61,061.76/84,290.64 = 41,968.92/x
  3. Step 3: Cross multiply
    61,061.76x = 84,290.64 × 41,968.92
  4. Step 4: Simplify right side
    61,061.76x = 3,537,587,126.91
  5. Step 5: Solve for x
    x = 3,537,587,126.91/61,061.76
  6. Step 6: Final answer
    x = 57,934.58

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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.