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Finding the Fourth Proportional to 66,123.84, 91,266.78 and 37,845.93

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Solution

The fourth proportional to 66,123.84, 91,266.78 and 37,845.93 is: 52,236.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,123.84 : 91,266.78 = 37,845.93 : x
  2. Step 2: Convert to fraction form
    66,123.84/91,266.78 = 37,845.93/x
  3. Step 3: Cross multiply
    66,123.84x = 91,266.78 × 37,845.93
  4. Step 4: Simplify right side
    66,123.84x = 3,454,076,167.21
  5. Step 5: Solve for x
    x = 3,454,076,167.21/66,123.84
  6. Step 6: Final answer
    x = 52,236.47

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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.