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Finding the Fourth Proportional to 25,980.56, 38,947.40 and 9,336.68

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Solution

The fourth proportional to 25,980.56, 38,947.40 and 9,336.68 is: 13,996.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,980.56 : 38,947.40 = 9,336.68 : x
  2. Step 2: Convert to fraction form
    25,980.56/38,947.40 = 9,336.68/x
  3. Step 3: Cross multiply
    25,980.56x = 38,947.40 × 9,336.68
  4. Step 4: Simplify right side
    25,980.56x = 363,639,410.63
  5. Step 5: Solve for x
    x = 363,639,410.63/25,980.56
  6. Step 6: Final answer
    x = 13,996.60

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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.