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Finding the Fourth Proportional to 948.52, 1,308.15 and 751.69

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Solution

The fourth proportional to 948.52, 1,308.15 and 751.69 is: 1,036.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    948.52 : 1,308.15 = 751.69 : x
  2. Step 2: Convert to fraction form
    948.52/1,308.15 = 751.69/x
  3. Step 3: Cross multiply
    948.52x = 1,308.15 × 751.69
  4. Step 4: Simplify right side
    948.52x = 983,323.27
  5. Step 5: Solve for x
    x = 983,323.27/948.52
  6. Step 6: Final answer
    x = 1,036.69

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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.