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Finding the Fourth Proportional to 61,491.84, 84,825.60 and 41,109.12

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Solution

The fourth proportional to 61,491.84, 84,825.60 and 41,109.12 is: 56,708.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,491.84 : 84,825.60 = 41,109.12 : x
  2. Step 2: Convert to fraction form
    61,491.84/84,825.60 = 41,109.12/x
  3. Step 3: Cross multiply
    61,491.84x = 84,825.60 × 41,109.12
  4. Step 4: Simplify right side
    61,491.84x = 3,487,105,769.47
  5. Step 5: Solve for x
    x = 3,487,105,769.47/61,491.84
  6. Step 6: Final answer
    x = 56,708.43

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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.