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Finding the Fourth Proportional to 25,371.72, 35,012.94 and 14,193.72

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Solution

The fourth proportional to 25,371.72, 35,012.94 and 14,193.72 is: 19,587.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,371.72 : 35,012.94 = 14,193.72 : x
  2. Step 2: Convert to fraction form
    25,371.72/35,012.94 = 14,193.72/x
  3. Step 3: Cross multiply
    25,371.72x = 35,012.94 × 14,193.72
  4. Step 4: Simplify right side
    25,371.72x = 496,963,866.74
  5. Step 5: Solve for x
    x = 496,963,866.74/25,371.72
  6. Step 6: Final answer
    x = 19,587.31

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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.