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Finding the Fourth Proportional to 18,612.50, 25,686.54 and 10,546.08

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Solution

The fourth proportional to 18,612.50, 25,686.54 and 10,546.08 is: 14,554.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.50 : 25,686.54 = 10,546.08 : x
  2. Step 2: Convert to fraction form
    18,612.50/25,686.54 = 10,546.08/x
  3. Step 3: Cross multiply
    18,612.50x = 25,686.54 × 10,546.08
  4. Step 4: Simplify right side
    18,612.50x = 270,892,305.76
  5. Step 5: Solve for x
    x = 270,892,305.76/18,612.50
  6. Step 6: Final answer
    x = 14,554.32

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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.