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Finding the Fourth Proportional to 4,695.52, 7,078.53 and 4,378.44

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Solution

The fourth proportional to 4,695.52, 7,078.53 and 4,378.44 is: 6,600.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,695.52 : 7,078.53 = 4,378.44 : x
  2. Step 2: Convert to fraction form
    4,695.52/7,078.53 = 4,378.44/x
  3. Step 3: Cross multiply
    4,695.52x = 7,078.53 × 4,378.44
  4. Step 4: Simplify right side
    4,695.52x = 30,992,918.89
  5. Step 5: Solve for x
    x = 30,992,918.89/4,695.52
  6. Step 6: Final answer
    x = 6,600.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.