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Finding the Fourth Proportional to 74,968.25, 112,452.21 and 19,564.25

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Solution

The fourth proportional to 74,968.25, 112,452.21 and 19,564.25 is: 29,346.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,968.25 : 112,452.21 = 19,564.25 : x
  2. Step 2: Convert to fraction form
    74,968.25/112,452.21 = 19,564.25/x
  3. Step 3: Cross multiply
    74,968.25x = 112,452.21 × 19,564.25
  4. Step 4: Simplify right side
    74,968.25x = 2,200,042,587.23
  5. Step 5: Solve for x
    x = 2,200,042,587.23/74,968.25
  6. Step 6: Final answer
    x = 29,346.33

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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.