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Finding the Fourth Proportional to 25,991.35, 35,868.08 and 15,234.08

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Solution

The fourth proportional to 25,991.35, 35,868.08 and 15,234.08 is: 21,023.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,991.35 : 35,868.08 = 15,234.08 : x
  2. Step 2: Convert to fraction form
    25,991.35/35,868.08 = 15,234.08/x
  3. Step 3: Cross multiply
    25,991.35x = 35,868.08 × 15,234.08
  4. Step 4: Simplify right side
    25,991.35x = 546,417,058.91
  5. Step 5: Solve for x
    x = 546,417,058.91/25,991.35
  6. Step 6: Final answer
    x = 21,023.04

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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.