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Finding the Fourth Proportional to 25,013.71, 34,518.99 and 13,835.71

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Solution

The fourth proportional to 25,013.71, 34,518.99 and 13,835.71 is: 19,093.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,013.71 : 34,518.99 = 13,835.71 : x
  2. Step 2: Convert to fraction form
    25,013.71/34,518.99 = 13,835.71/x
  3. Step 3: Cross multiply
    25,013.71x = 34,518.99 × 13,835.71
  4. Step 4: Simplify right side
    25,013.71x = 477,594,735.13
  5. Step 5: Solve for x
    x = 477,594,735.13/25,013.71
  6. Step 6: Final answer
    x = 19,093.32

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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.