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Finding the Fourth Proportional to 35,751.90, 53,623.44 and 20,767.26

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Solution

The fourth proportional to 35,751.90, 53,623.44 and 20,767.26 is: 31,148.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,751.90 : 53,623.44 = 20,767.26 : x
  2. Step 2: Convert to fraction form
    35,751.90/53,623.44 = 20,767.26/x
  3. Step 3: Cross multiply
    35,751.90x = 53,623.44 × 20,767.26
  4. Step 4: Simplify right side
    35,751.90x = 1,113,611,920.57
  5. Step 5: Solve for x
    x = 1,113,611,920.57/35,751.90
  6. Step 6: Final answer
    x = 31,148.33

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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.