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Finding the Fourth Proportional to 1,788.95, 2,468.64 and 1,002.91

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Solution

The fourth proportional to 1,788.95, 2,468.64 and 1,002.91 is: 1,383.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788.95 : 2,468.64 = 1,002.91 : x
  2. Step 2: Convert to fraction form
    1,788.95/2,468.64 = 1,002.91/x
  3. Step 3: Cross multiply
    1,788.95x = 2,468.64 × 1,002.91
  4. Step 4: Simplify right side
    1,788.95x = 2,475,823.74
  5. Step 5: Solve for x
    x = 2,475,823.74/1,788.95
  6. Step 6: Final answer
    x = 1,383.95

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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.