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Finding the Fourth Proportional to 35,257.75, 48,657.14 and 20,353.75

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Solution

The fourth proportional to 35,257.75, 48,657.14 and 20,353.75 is: 28,089.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,257.75 : 48,657.14 = 20,353.75 : x
  2. Step 2: Convert to fraction form
    35,257.75/48,657.14 = 20,353.75/x
  3. Step 3: Cross multiply
    35,257.75x = 48,657.14 × 20,353.75
  4. Step 4: Simplify right side
    35,257.75x = 990,355,263.28
  5. Step 5: Solve for x
    x = 990,355,263.28/35,257.75
  6. Step 6: Final answer
    x = 28,089.01

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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.