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Finding the Fourth Proportional to 73,104.40, 100,884.06 and 39,570.40

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Solution

The fourth proportional to 73,104.40, 100,884.06 and 39,570.40 is: 54,607.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,104.40 : 100,884.06 = 39,570.40 : x
  2. Step 2: Convert to fraction form
    73,104.40/100,884.06 = 39,570.40/x
  3. Step 3: Cross multiply
    73,104.40x = 100,884.06 × 39,570.40
  4. Step 4: Simplify right side
    73,104.40x = 3,992,022,607.82
  5. Step 5: Solve for x
    x = 3,992,022,607.82/73,104.40
  6. Step 6: Final answer
    x = 54,607.15

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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.