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Finding the Fourth Proportional to 66,173.64, 91,319.64 and 35,959.28

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Solution

The fourth proportional to 66,173.64, 91,319.64 and 35,959.28 is: 49,623.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,173.64 : 91,319.64 = 35,959.28 : x
  2. Step 2: Convert to fraction form
    66,173.64/91,319.64 = 35,959.28/x
  3. Step 3: Cross multiply
    66,173.64x = 91,319.64 × 35,959.28
  4. Step 4: Simplify right side
    66,173.64x = 3,283,788,504.26
  5. Step 5: Solve for x
    x = 3,283,788,504.26/66,173.64
  6. Step 6: Final answer
    x = 49,623.82

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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.