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Finding the Fourth Proportional to 25,655.45, 35,410.42 and 15,048.50

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Solution

The fourth proportional to 25,655.45, 35,410.42 and 15,048.50 is: 20,770.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,655.45 : 35,410.42 = 15,048.50 : x
  2. Step 2: Convert to fraction form
    25,655.45/35,410.42 = 15,048.50/x
  3. Step 3: Cross multiply
    25,655.45x = 35,410.42 × 15,048.50
  4. Step 4: Simplify right side
    25,655.45x = 532,873,453.08
  5. Step 5: Solve for x
    x = 532,873,453.08/25,655.45
  6. Step 6: Final answer
    x = 20,770.38

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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.