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Finding the Fourth Proportional to 12,971.52, 19,537.01 and 12,058.92

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Solution

The fourth proportional to 12,971.52, 19,537.01 and 12,058.92 is: 18,162.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.52 : 19,537.01 = 12,058.92 : x
  2. Step 2: Convert to fraction form
    12,971.52/19,537.01 = 12,058.92/x
  3. Step 3: Cross multiply
    12,971.52x = 19,537.01 × 12,058.92
  4. Step 4: Simplify right side
    12,971.52x = 235,595,180.33
  5. Step 5: Solve for x
    x = 235,595,180.33/12,971.52
  6. Step 6: Final answer
    x = 18,162.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.