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Finding the Fourth Proportional to 35,754.56, 49,348.47 and 20,649.68

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Solution

The fourth proportional to 35,754.56, 49,348.47 and 20,649.68 is: 28,500.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,754.56 : 49,348.47 = 20,649.68 : x
  2. Step 2: Convert to fraction form
    35,754.56/49,348.47 = 20,649.68/x
  3. Step 3: Cross multiply
    35,754.56x = 49,348.47 × 20,649.68
  4. Step 4: Simplify right side
    35,754.56x = 1,019,030,113.99
  5. Step 5: Solve for x
    x = 1,019,030,113.99/35,754.56
  6. Step 6: Final answer
    x = 28,500.70

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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.