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Finding the Fourth Proportional to 50,800.68, 70,105.44 and 30,653.68

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Solution

The fourth proportional to 50,800.68, 70,105.44 and 30,653.68 is: 42,302.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,800.68 : 70,105.44 = 30,653.68 : x
  2. Step 2: Convert to fraction form
    50,800.68/70,105.44 = 30,653.68/x
  3. Step 3: Cross multiply
    50,800.68x = 70,105.44 × 30,653.68
  4. Step 4: Simplify right side
    50,800.68x = 2,148,989,724.02
  5. Step 5: Solve for x
    x = 2,148,989,724.02/50,800.68
  6. Step 6: Final answer
    x = 42,302.38

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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.