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Finding the Fourth Proportional to 66,256.92, 91,436.93 and 37,968.08

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Solution

The fourth proportional to 66,256.92, 91,436.93 and 37,968.08 is: 52,397.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,256.92 : 91,436.93 = 37,968.08 : x
  2. Step 2: Convert to fraction form
    66,256.92/91,436.93 = 37,968.08/x
  3. Step 3: Cross multiply
    66,256.92x = 91,436.93 × 37,968.08
  4. Step 4: Simplify right side
    66,256.92x = 3,471,684,382.12
  5. Step 5: Solve for x
    x = 3,471,684,382.12/66,256.92
  6. Step 6: Final answer
    x = 52,397.31

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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.