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Finding the Fourth Proportional to 60,141.72, 90,223.92 and 18,579

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Solution

The fourth proportional to 60,141.72, 90,223.92 and 18,579 is: 27,872.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,141.72 : 90,223.92 = 18,579 : x
  2. Step 2: Convert to fraction form
    60,141.72/90,223.92 = 18,579/x
  3. Step 3: Cross multiply
    60,141.72x = 90,223.92 × 18,579
  4. Step 4: Simplify right side
    60,141.72x = 1,676,270,209.68
  5. Step 5: Solve for x
    x = 1,676,270,209.68/60,141.72
  6. Step 6: Final answer
    x = 27,872.00

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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.