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Finding the Fourth Proportional to 66,879.86, 92,294.97 and 38,203.32

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Solution

The fourth proportional to 66,879.86, 92,294.97 and 38,203.32 is: 52,721.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,879.86 : 92,294.97 = 38,203.32 : x
  2. Step 2: Convert to fraction form
    66,879.86/92,294.97 = 38,203.32/x
  3. Step 3: Cross multiply
    66,879.86x = 92,294.97 × 38,203.32
  4. Step 4: Simplify right side
    66,879.86x = 3,525,974,324.01
  5. Step 5: Solve for x
    x = 3,525,974,324.01/66,879.86
  6. Step 6: Final answer
    x = 52,721.01

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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.