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Finding the Fourth Proportional to 74,963.42, 112,445.11 and 19,559.42

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Solution

The fourth proportional to 74,963.42, 112,445.11 and 19,559.42 is: 29,339.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,963.42 : 112,445.11 = 19,559.42 : x
  2. Step 2: Convert to fraction form
    74,963.42/112,445.11 = 19,559.42/x
  3. Step 3: Cross multiply
    74,963.42x = 112,445.11 × 19,559.42
  4. Step 4: Simplify right side
    74,963.42x = 2,199,361,133.44
  5. Step 5: Solve for x
    x = 2,199,361,133.44/74,963.42
  6. Step 6: Final answer
    x = 29,339.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.