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Finding the Fourth Proportional to 13,026.76, 17,976.85 and 7,058.54

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Solution

The fourth proportional to 13,026.76, 17,976.85 and 7,058.54 is: 9,740.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,026.76 : 17,976.85 = 7,058.54 : x
  2. Step 2: Convert to fraction form
    13,026.76/17,976.85 = 7,058.54/x
  3. Step 3: Cross multiply
    13,026.76x = 17,976.85 × 7,058.54
  4. Step 4: Simplify right side
    13,026.76x = 126,890,314.80
  5. Step 5: Solve for x
    x = 126,890,314.80/13,026.76
  6. Step 6: Final answer
    x = 9,740.74

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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.