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Finding the Fourth Proportional to 69,615.65, 96,069.68 and 37,784.56

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Solution

The fourth proportional to 69,615.65, 96,069.68 and 37,784.56 is: 52,142.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,615.65 : 96,069.68 = 37,784.56 : x
  2. Step 2: Convert to fraction form
    69,615.65/96,069.68 = 37,784.56/x
  3. Step 3: Cross multiply
    69,615.65x = 96,069.68 × 37,784.56
  4. Step 4: Simplify right side
    69,615.65x = 3,629,950,588.14
  5. Step 5: Solve for x
    x = 3,629,950,588.14/69,615.65
  6. Step 6: Final answer
    x = 52,142.74

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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.