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Finding the Fourth Proportional to 67,370.87, 92,976.05 and 38,699.51

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Solution

The fourth proportional to 67,370.87, 92,976.05 and 38,699.51 is: 53,407.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,370.87 : 92,976.05 = 38,699.51 : x
  2. Step 2: Convert to fraction form
    67,370.87/92,976.05 = 38,699.51/x
  3. Step 3: Cross multiply
    67,370.87x = 92,976.05 × 38,699.51
  4. Step 4: Simplify right side
    67,370.87x = 3,598,127,208.60
  5. Step 5: Solve for x
    x = 3,598,127,208.60/67,370.87
  6. Step 6: Final answer
    x = 53,407.76

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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.