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Finding the Fourth Proportional to 66,076, 91,173.12 and 37,395.52

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Solution

The fourth proportional to 66,076, 91,173.12 and 37,395.52 is: 51,599.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,076 : 91,173.12 = 37,395.52 : x
  2. Step 2: Convert to fraction form
    66,076/91,173.12 = 37,395.52/x
  3. Step 3: Cross multiply
    66,076x = 91,173.12 × 37,395.52
  4. Step 4: Simplify right side
    66,076x = 3,409,466,232.42
  5. Step 5: Solve for x
    x = 3,409,466,232.42/66,076
  6. Step 6: Final answer
    x = 51,599.16

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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.