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Finding the Fourth Proportional to 1,715, 2,366.58 and 1,051.58

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Solution

The fourth proportional to 1,715, 2,366.58 and 1,051.58 is: 1,451.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,715 : 2,366.58 = 1,051.58 : x
  2. Step 2: Convert to fraction form
    1,715/2,366.58 = 1,051.58/x
  3. Step 3: Cross multiply
    1,715x = 2,366.58 × 1,051.58
  4. Step 4: Simplify right side
    1,715x = 2,488,648.20
  5. Step 5: Solve for x
    x = 2,488,648.20/1,715
  6. Step 6: Final answer
    x = 1,451.11

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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.