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Finding the Fourth Proportional to 25,656.48, 35,388.90 and 15,035.76

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Solution

The fourth proportional to 25,656.48, 35,388.90 and 15,035.76 is: 20,739.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,656.48 : 35,388.90 = 15,035.76 : x
  2. Step 2: Convert to fraction form
    25,656.48/35,388.90 = 15,035.76/x
  3. Step 3: Cross multiply
    25,656.48x = 35,388.90 × 15,035.76
  4. Step 4: Simplify right side
    25,656.48x = 532,099,007.06
  5. Step 5: Solve for x
    x = 532,099,007.06/25,656.48
  6. Step 6: Final answer
    x = 20,739.36

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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.