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Finding the Fourth Proportional to 70,057.71, 96,681.77 and 39,847.37

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Solution

The fourth proportional to 70,057.71, 96,681.77 and 39,847.37 is: 54,990.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,057.71 : 96,681.77 = 39,847.37 : x
  2. Step 2: Convert to fraction form
    70,057.71/96,681.77 = 39,847.37/x
  3. Step 3: Cross multiply
    70,057.71x = 96,681.77 × 39,847.37
  4. Step 4: Simplify right side
    70,057.71x = 3,852,514,431.91
  5. Step 5: Solve for x
    x = 3,852,514,431.91/70,057.71
  6. Step 6: Final answer
    x = 54,990.59

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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.