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Finding the Fourth Proportional to 61,185.97, 91,762.17 and 16,802.20

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Solution

The fourth proportional to 61,185.97, 91,762.17 and 16,802.20 is: 25,198.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,185.97 : 91,762.17 = 16,802.20 : x
  2. Step 2: Convert to fraction form
    61,185.97/91,762.17 = 16,802.20/x
  3. Step 3: Cross multiply
    61,185.97x = 91,762.17 × 16,802.20
  4. Step 4: Simplify right side
    61,185.97x = 1,541,806,332.77
  5. Step 5: Solve for x
    x = 1,541,806,332.77/61,185.97
  6. Step 6: Final answer
    x = 25,198.69

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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.