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Finding the Fourth Proportional to 18,714.15, 28,058.22 and 7,024.23

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Solution

The fourth proportional to 18,714.15, 28,058.22 and 7,024.23 is: 10,531.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714.15 : 28,058.22 = 7,024.23 : x
  2. Step 2: Convert to fraction form
    18,714.15/28,058.22 = 7,024.23/x
  3. Step 3: Cross multiply
    18,714.15x = 28,058.22 × 7,024.23
  4. Step 4: Simplify right side
    18,714.15x = 197,087,390.67
  5. Step 5: Solve for x
    x = 197,087,390.67/18,714.15
  6. Step 6: Final answer
    x = 10,531.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.