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Finding the Fourth Proportional to 56,606.88, 78,117.85 and 35,398.56

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Solution

The fourth proportional to 56,606.88, 78,117.85 and 35,398.56 is: 48,850.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,606.88 : 78,117.85 = 35,398.56 : x
  2. Step 2: Convert to fraction form
    56,606.88/78,117.85 = 35,398.56/x
  3. Step 3: Cross multiply
    56,606.88x = 78,117.85 × 35,398.56
  4. Step 4: Simplify right side
    56,606.88x = 2,765,259,400.30
  5. Step 5: Solve for x
    x = 2,765,259,400.30/56,606.88
  6. Step 6: Final answer
    x = 48,850.24

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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.