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Finding the Fourth Proportional to 25,431.71, 35,124.50 and 17,351.50

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Solution

The fourth proportional to 25,431.71, 35,124.50 and 17,351.50 is: 23,964.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,431.71 : 35,124.50 = 17,351.50 : x
  2. Step 2: Convert to fraction form
    25,431.71/35,124.50 = 17,351.50/x
  3. Step 3: Cross multiply
    25,431.71x = 35,124.50 × 17,351.50
  4. Step 4: Simplify right side
    25,431.71x = 609,462,761.75
  5. Step 5: Solve for x
    x = 609,462,761.75/25,431.71
  6. Step 6: Final answer
    x = 23,964.68

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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.