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Finding the Fourth Proportional to 13,026.81, 17,976.93 and 7,058.48

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Solution

The fourth proportional to 13,026.81, 17,976.93 and 7,058.48 is: 9,740.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,026.81 : 17,976.93 = 7,058.48 : x
  2. Step 2: Convert to fraction form
    13,026.81/17,976.93 = 7,058.48/x
  3. Step 3: Cross multiply
    13,026.81x = 17,976.93 × 7,058.48
  4. Step 4: Simplify right side
    13,026.81x = 126,889,710.98
  5. Step 5: Solve for x
    x = 126,889,710.98/13,026.81
  6. Step 6: Final answer
    x = 9,740.66

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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.