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Finding the Fourth Proportional to 1,864.52, 2,796.13 and 547.93

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Solution

The fourth proportional to 1,864.52, 2,796.13 and 547.93 is: 821.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.52 : 2,796.13 = 547.93 : x
  2. Step 2: Convert to fraction form
    1,864.52/2,796.13 = 547.93/x
  3. Step 3: Cross multiply
    1,864.52x = 2,796.13 × 547.93
  4. Step 4: Simplify right side
    1,864.52x = 1,532,076.67
  5. Step 5: Solve for x
    x = 1,532,076.67/1,864.52
  6. Step 6: Final answer
    x = 821.70

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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.