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Finding the Fourth Proportional to 12,708.53, 17,537.50 and 7,043.23

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Solution

The fourth proportional to 12,708.53, 17,537.50 and 7,043.23 is: 9,719.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,708.53 : 17,537.50 = 7,043.23 : x
  2. Step 2: Convert to fraction form
    12,708.53/17,537.50 = 7,043.23/x
  3. Step 3: Cross multiply
    12,708.53x = 17,537.50 × 7,043.23
  4. Step 4: Simplify right side
    12,708.53x = 123,520,646.13
  5. Step 5: Solve for x
    x = 123,520,646.13/12,708.53
  6. Step 6: Final answer
    x = 9,719.51

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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.