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Finding the Fourth Proportional to 35,034.33, 48,331 and 20,684.40

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Solution

The fourth proportional to 35,034.33, 48,331 and 20,684.40 is: 28,534.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,034.33 : 48,331 = 20,684.40 : x
  2. Step 2: Convert to fraction form
    35,034.33/48,331 = 20,684.40/x
  3. Step 3: Cross multiply
    35,034.33x = 48,331 × 20,684.40
  4. Step 4: Simplify right side
    35,034.33x = 999,697,736.40
  5. Step 5: Solve for x
    x = 999,697,736.40/35,034.33
  6. Step 6: Final answer
    x = 28,534.80

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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.