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Finding the Fourth Proportional to 35,298.48, 48,713.04 and 20,394.48

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Solution

The fourth proportional to 35,298.48, 48,713.04 and 20,394.48 is: 28,145.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,298.48 : 48,713.04 = 20,394.48 : x
  2. Step 2: Convert to fraction form
    35,298.48/48,713.04 = 20,394.48/x
  3. Step 3: Cross multiply
    35,298.48x = 48,713.04 × 20,394.48
  4. Step 4: Simplify right side
    35,298.48x = 993,477,120.02
  5. Step 5: Solve for x
    x = 993,477,120.02/35,298.48
  6. Step 6: Final answer
    x = 28,145.04

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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.