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Finding the Fourth Proportional to 12,581.23, 17,365.23 and 7,275.28

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Solution

The fourth proportional to 12,581.23, 17,365.23 and 7,275.28 is: 10,041.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,581.23 : 17,365.23 = 7,275.28 : x
  2. Step 2: Convert to fraction form
    12,581.23/17,365.23 = 7,275.28/x
  3. Step 3: Cross multiply
    12,581.23x = 17,365.23 × 7,275.28
  4. Step 4: Simplify right side
    12,581.23x = 126,336,910.51
  5. Step 5: Solve for x
    x = 126,336,910.51/12,581.23
  6. Step 6: Final answer
    x = 10,041.70

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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.