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Finding the Fourth Proportional to 35,397.60, 48,844.80 and 20,294.34

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Solution

The fourth proportional to 35,397.60, 48,844.80 and 20,294.34 is: 28,003.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,397.60 : 48,844.80 = 20,294.34 : x
  2. Step 2: Convert to fraction form
    35,397.60/48,844.80 = 20,294.34/x
  3. Step 3: Cross multiply
    35,397.60x = 48,844.80 × 20,294.34
  4. Step 4: Simplify right side
    35,397.60x = 991,272,978.43
  5. Step 5: Solve for x
    x = 991,272,978.43/35,397.60
  6. Step 6: Final answer
    x = 28,003.96

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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.