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Finding the Fourth Proportional to 25,305.74, 37,966.74 and 12,159.08

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Solution

The fourth proportional to 25,305.74, 37,966.74 and 12,159.08 is: 18,242.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,305.74 : 37,966.74 = 12,159.08 : x
  2. Step 2: Convert to fraction form
    25,305.74/37,966.74 = 12,159.08/x
  3. Step 3: Cross multiply
    25,305.74x = 37,966.74 × 12,159.08
  4. Step 4: Simplify right side
    25,305.74x = 461,640,629.00
  5. Step 5: Solve for x
    x = 461,640,629.00/25,305.74
  6. Step 6: Final answer
    x = 18,242.53

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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.