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Finding the Fourth Proportional to 66,988.63, 92,443.93 and 36,774.46

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Solution

The fourth proportional to 66,988.63, 92,443.93 and 36,774.46 is: 50,748.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,988.63 : 92,443.93 = 36,774.46 : x
  2. Step 2: Convert to fraction form
    66,988.63/92,443.93 = 36,774.46/x
  3. Step 3: Cross multiply
    66,988.63x = 92,443.93 × 36,774.46
  4. Step 4: Simplify right side
    66,988.63x = 3,399,575,606.03
  5. Step 5: Solve for x
    x = 3,399,575,606.03/66,988.63
  6. Step 6: Final answer
    x = 50,748.55

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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.