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Finding the Fourth Proportional to 18,274.10, 27,411.15 and 9,058.10

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Solution

The fourth proportional to 18,274.10, 27,411.15 and 9,058.10 is: 13,587.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.10 : 27,411.15 = 9,058.10 : x
  2. Step 2: Convert to fraction form
    18,274.10/27,411.15 = 9,058.10/x
  3. Step 3: Cross multiply
    18,274.10x = 27,411.15 × 9,058.10
  4. Step 4: Simplify right side
    18,274.10x = 248,292,937.82
  5. Step 5: Solve for x
    x = 248,292,937.82/18,274.10
  6. Step 6: Final answer
    x = 13,587.15

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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.