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Finding the Fourth Proportional to 7,160.53, 9,867.93 and 5,167.52

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Solution

The fourth proportional to 7,160.53, 9,867.93 and 5,167.52 is: 7,121.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.53 : 9,867.93 = 5,167.52 : x
  2. Step 2: Convert to fraction form
    7,160.53/9,867.93 = 5,167.52/x
  3. Step 3: Cross multiply
    7,160.53x = 9,867.93 × 5,167.52
  4. Step 4: Simplify right side
    7,160.53x = 50,992,725.63
  5. Step 5: Solve for x
    x = 50,992,725.63/7,160.53
  6. Step 6: Final answer
    x = 7,121.36

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1.5x scale

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.