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Finding the Fourth Proportional to 6,061.76, 9,092.64 and 3,320

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Solution

The fourth proportional to 6,061.76, 9,092.64 and 3,320 is: 4,980.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,061.76 : 9,092.64 = 3,320 : x
  2. Step 2: Convert to fraction form
    6,061.76/9,092.64 = 3,320/x
  3. Step 3: Cross multiply
    6,061.76x = 9,092.64 × 3,320
  4. Step 4: Simplify right side
    6,061.76x = 30,187,564.80
  5. Step 5: Solve for x
    x = 30,187,564.80/6,061.76
  6. Step 6: Final answer
    x = 4,980.00

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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.