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Finding the Fourth Proportional to 66,792, 92,172.96 and 36,984

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Solution

The fourth proportional to 66,792, 92,172.96 and 36,984 is: 51,037.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,792 : 92,172.96 = 36,984 : x
  2. Step 2: Convert to fraction form
    66,792/92,172.96 = 36,984/x
  3. Step 3: Cross multiply
    66,792x = 92,172.96 × 36,984
  4. Step 4: Simplify right side
    66,792x = 3,408,924,752.64
  5. Step 5: Solve for x
    x = 3,408,924,752.64/66,792
  6. Step 6: Final answer
    x = 51,037.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.