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Finding the Fourth Proportional to 25,141.80, 34,695.74 and 13,963.80

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Solution

The fourth proportional to 25,141.80, 34,695.74 and 13,963.80 is: 19,270.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,141.80 : 34,695.74 = 13,963.80 : x
  2. Step 2: Convert to fraction form
    25,141.80/34,695.74 = 13,963.80/x
  3. Step 3: Cross multiply
    25,141.80x = 34,695.74 × 13,963.80
  4. Step 4: Simplify right side
    25,141.80x = 484,484,374.21
  5. Step 5: Solve for x
    x = 484,484,374.21/25,141.80
  6. Step 6: Final answer
    x = 19,270.08

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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.