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Finding the Fourth Proportional to 70,055.96, 96,682.96 and 39,850.74

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Solution

The fourth proportional to 70,055.96, 96,682.96 and 39,850.74 is: 54,997.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,055.96 : 96,682.96 = 39,850.74 : x
  2. Step 2: Convert to fraction form
    70,055.96/96,682.96 = 39,850.74/x
  3. Step 3: Cross multiply
    70,055.96x = 96,682.96 × 39,850.74
  4. Step 4: Simplify right side
    70,055.96x = 3,852,887,501.39
  5. Step 5: Solve for x
    x = 3,852,887,501.39/70,055.96
  6. Step 6: Final answer
    x = 54,997.28

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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.