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Finding the Fourth Proportional to 23,660.78, 35,515.78 and 17,427.84

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Solution

The fourth proportional to 23,660.78, 35,515.78 and 17,427.84 is: 26,159.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,660.78 : 35,515.78 = 17,427.84 : x
  2. Step 2: Convert to fraction form
    23,660.78/35,515.78 = 17,427.84/x
  3. Step 3: Cross multiply
    23,660.78x = 35,515.78 × 17,427.84
  4. Step 4: Simplify right side
    23,660.78x = 618,963,331.32
  5. Step 5: Solve for x
    x = 618,963,331.32/23,660.78
  6. Step 6: Final answer
    x = 26,159.89

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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.