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Finding the Fourth Proportional to 12,735.48, 17,575.02 and 7,146.48

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Solution

The fourth proportional to 12,735.48, 17,575.02 and 7,146.48 is: 9,862.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,735.48 : 17,575.02 = 7,146.48 : x
  2. Step 2: Convert to fraction form
    12,735.48/17,575.02 = 7,146.48/x
  3. Step 3: Cross multiply
    12,735.48x = 17,575.02 × 7,146.48
  4. Step 4: Simplify right side
    12,735.48x = 125,599,528.93
  5. Step 5: Solve for x
    x = 125,599,528.93/12,735.48
  6. Step 6: Final answer
    x = 9,862.17

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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.