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Finding the Fourth Proportional to 3,601.66, 4,970.29 and 1,945.66

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Solution

The fourth proportional to 3,601.66, 4,970.29 and 1,945.66 is: 2,685.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,601.66 : 4,970.29 = 1,945.66 : x
  2. Step 2: Convert to fraction form
    3,601.66/4,970.29 = 1,945.66/x
  3. Step 3: Cross multiply
    3,601.66x = 4,970.29 × 1,945.66
  4. Step 4: Simplify right side
    3,601.66x = 9,670,459.86
  5. Step 5: Solve for x
    x = 9,670,459.86/3,601.66
  6. Step 6: Final answer
    x = 2,685.00

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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.