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Finding the Fourth Proportional to 2,484.15, 3,726.01 and 840.66

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Solution

The fourth proportional to 2,484.15, 3,726.01 and 840.66 is: 1,260.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,484.15 : 3,726.01 = 840.66 : x
  2. Step 2: Convert to fraction form
    2,484.15/3,726.01 = 840.66/x
  3. Step 3: Cross multiply
    2,484.15x = 3,726.01 × 840.66
  4. Step 4: Simplify right side
    2,484.15x = 3,132,307.57
  5. Step 5: Solve for x
    x = 3,132,307.57/2,484.15
  6. Step 6: Final answer
    x = 1,260.92

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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.