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Finding the Fourth Proportional to 74,963.95, 103,450.01 and 40,972.44

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Solution

The fourth proportional to 74,963.95, 103,450.01 and 40,972.44 is: 56,541.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,963.95 : 103,450.01 = 40,972.44 : x
  2. Step 2: Convert to fraction form
    74,963.95/103,450.01 = 40,972.44/x
  3. Step 3: Cross multiply
    74,963.95x = 103,450.01 × 40,972.44
  4. Step 4: Simplify right side
    74,963.95x = 4,238,599,327.72
  5. Step 5: Solve for x
    x = 4,238,599,327.72/74,963.95
  6. Step 6: Final answer
    x = 56,541.84

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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.