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Finding the Fourth Proportional to 35,778.46, 53,649.46 and 21,016.22

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Solution

The fourth proportional to 35,778.46, 53,649.46 and 21,016.22 is: 31,513.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,778.46 : 53,649.46 = 21,016.22 : x
  2. Step 2: Convert to fraction form
    35,778.46/53,649.46 = 21,016.22/x
  3. Step 3: Cross multiply
    35,778.46x = 53,649.46 × 21,016.22
  4. Step 4: Simplify right side
    35,778.46x = 1,127,508,854.24
  5. Step 5: Solve for x
    x = 1,127,508,854.24/35,778.46
  6. Step 6: Final answer
    x = 31,513.62

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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.