Home / 66,665.27-92,021.23-38,382.23

Finding the Fourth Proportional to 66,665.27, 92,021.23 and 38,382.23

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Solution

The fourth proportional to 66,665.27, 92,021.23 and 38,382.23 is: 52,980.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,665.27 : 92,021.23 = 38,382.23 : x
  2. Step 2: Convert to fraction form
    66,665.27/92,021.23 = 38,382.23/x
  3. Step 3: Cross multiply
    66,665.27x = 92,021.23 × 38,382.23
  4. Step 4: Simplify right side
    66,665.27x = 3,531,980,292.77
  5. Step 5: Solve for x
    x = 3,531,980,292.77/66,665.27
  6. Step 6: Final answer
    x = 52,980.81

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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.