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Finding the Fourth Proportional to 12,572.47, 17,347.93 and 7,266.97

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Solution

The fourth proportional to 12,572.47, 17,347.93 and 7,266.97 is: 10,027.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,572.47 : 17,347.93 = 7,266.97 : x
  2. Step 2: Convert to fraction form
    12,572.47/17,347.93 = 7,266.97/x
  3. Step 3: Cross multiply
    12,572.47x = 17,347.93 × 7,266.97
  4. Step 4: Simplify right side
    12,572.47x = 126,066,886.87
  5. Step 5: Solve for x
    x = 126,066,886.87/12,572.47
  6. Step 6: Final answer
    x = 10,027.22

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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.