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Finding the Fourth Proportional to 13,058.69, 18,030.36 and 8,029.67

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Solution

The fourth proportional to 13,058.69, 18,030.36 and 8,029.67 is: 11,086.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,058.69 : 18,030.36 = 8,029.67 : x
  2. Step 2: Convert to fraction form
    13,058.69/18,030.36 = 8,029.67/x
  3. Step 3: Cross multiply
    13,058.69x = 18,030.36 × 8,029.67
  4. Step 4: Simplify right side
    13,058.69x = 144,777,780.74
  5. Step 5: Solve for x
    x = 144,777,780.74/13,058.69
  6. Step 6: Final answer
    x = 11,086.70

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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.