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Finding the Fourth Proportional to 74,893.70, 103,354.01 and 42,626.74

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Solution

The fourth proportional to 74,893.70, 103,354.01 and 42,626.74 is: 58,825.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,893.70 : 103,354.01 = 42,626.74 : x
  2. Step 2: Convert to fraction form
    74,893.70/103,354.01 = 42,626.74/x
  3. Step 3: Cross multiply
    74,893.70x = 103,354.01 × 42,626.74
  4. Step 4: Simplify right side
    74,893.70x = 4,405,644,394.35
  5. Step 5: Solve for x
    x = 4,405,644,394.35/74,893.70
  6. Step 6: Final answer
    x = 58,825.30

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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.