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Finding the Fourth Proportional to 35,398.64, 48,850.29 and 20,292.21

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Solution

The fourth proportional to 35,398.64, 48,850.29 and 20,292.21 is: 28,003.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,398.64 : 48,850.29 = 20,292.21 : x
  2. Step 2: Convert to fraction form
    35,398.64/48,850.29 = 20,292.21/x
  3. Step 3: Cross multiply
    35,398.64x = 48,850.29 × 20,292.21
  4. Step 4: Simplify right side
    35,398.64x = 991,280,343.24
  5. Step 5: Solve for x
    x = 991,280,343.24/35,398.64
  6. Step 6: Final answer
    x = 28,003.35

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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.