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Finding the Fourth Proportional to 69,810.97, 96,338.70 and 37,980.01

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Solution

The fourth proportional to 69,810.97, 96,338.70 and 37,980.01 is: 52,412.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,810.97 : 96,338.70 = 37,980.01 : x
  2. Step 2: Convert to fraction form
    69,810.97/96,338.70 = 37,980.01/x
  3. Step 3: Cross multiply
    69,810.97x = 96,338.70 × 37,980.01
  4. Step 4: Simplify right side
    69,810.97x = 3,658,944,789.39
  5. Step 5: Solve for x
    x = 3,658,944,789.39/69,810.97
  6. Step 6: Final answer
    x = 52,412.18

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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.