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Finding the Fourth Proportional to 70,933.82, 97,887.50 and 38,668.80

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Solution

The fourth proportional to 70,933.82, 97,887.50 and 38,668.80 is: 53,362.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,933.82 : 97,887.50 = 38,668.80 : x
  2. Step 2: Convert to fraction form
    70,933.82/97,887.50 = 38,668.80/x
  3. Step 3: Cross multiply
    70,933.82x = 97,887.50 × 38,668.80
  4. Step 4: Simplify right side
    70,933.82x = 3,785,192,160.00
  5. Step 5: Solve for x
    x = 3,785,192,160.00/70,933.82
  6. Step 6: Final answer
    x = 53,362.31

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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.