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Finding the Fourth Proportional to 73,070.93, 100,837.72 and 39,536.93

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Solution

The fourth proportional to 73,070.93, 100,837.72 and 39,536.93 is: 54,560.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,070.93 : 100,837.72 = 39,536.93 : x
  2. Step 2: Convert to fraction form
    73,070.93/100,837.72 = 39,536.93/x
  3. Step 3: Cross multiply
    73,070.93x = 100,837.72 × 39,536.93
  4. Step 4: Simplify right side
    73,070.93x = 3,986,813,877.00
  5. Step 5: Solve for x
    x = 3,986,813,877.00/73,070.93
  6. Step 6: Final answer
    x = 54,560.87

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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.