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Finding the Fourth Proportional to 66,798.77, 92,190.83 and 38,504.66

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Solution

The fourth proportional to 66,798.77, 92,190.83 and 38,504.66 is: 53,141.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,798.77 : 92,190.83 = 38,504.66 : x
  2. Step 2: Convert to fraction form
    66,798.77/92,190.83 = 38,504.66/x
  3. Step 3: Cross multiply
    66,798.77x = 92,190.83 × 38,504.66
  4. Step 4: Simplify right side
    66,798.77x = 3,549,776,564.27
  5. Step 5: Solve for x
    x = 3,549,776,564.27/66,798.77
  6. Step 6: Final answer
    x = 53,141.35

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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.