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Finding the Fourth Proportional to 69,973.71, 96,556.74 and 39,343.56

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Solution

The fourth proportional to 69,973.71, 96,556.74 and 39,343.56 is: 54,290.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,973.71 : 96,556.74 = 39,343.56 : x
  2. Step 2: Convert to fraction form
    69,973.71/96,556.74 = 39,343.56/x
  3. Step 3: Cross multiply
    69,973.71x = 96,556.74 × 39,343.56
  4. Step 4: Simplify right side
    69,973.71x = 3,798,885,893.59
  5. Step 5: Solve for x
    x = 3,798,885,893.59/69,973.71
  6. Step 6: Final answer
    x = 54,290.19

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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.