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Finding the Fourth Proportional to 25,909.29, 35,749.02 and 15,293.25

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Solution

The fourth proportional to 25,909.29, 35,749.02 and 15,293.25 is: 21,101.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,909.29 : 35,749.02 = 15,293.25 : x
  2. Step 2: Convert to fraction form
    25,909.29/35,749.02 = 15,293.25/x
  3. Step 3: Cross multiply
    25,909.29x = 35,749.02 × 15,293.25
  4. Step 4: Simplify right side
    25,909.29x = 546,718,700.12
  5. Step 5: Solve for x
    x = 546,718,700.12/25,909.29
  6. Step 6: Final answer
    x = 21,101.26

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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.