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Finding the Fourth Proportional to 15,058.66, 20,782.14 and 8,344.93

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Solution

The fourth proportional to 15,058.66, 20,782.14 and 8,344.93 is: 11,516.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,058.66 : 20,782.14 = 8,344.93 : x
  2. Step 2: Convert to fraction form
    15,058.66/20,782.14 = 8,344.93/x
  3. Step 3: Cross multiply
    15,058.66x = 20,782.14 × 8,344.93
  4. Step 4: Simplify right side
    15,058.66x = 173,425,357.91
  5. Step 5: Solve for x
    x = 173,425,357.91/15,058.66
  6. Step 6: Final answer
    x = 11,516.66

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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.