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Finding the Fourth Proportional to 50,355.84, 75,484.50 and 20,798.58

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Solution

The fourth proportional to 50,355.84, 75,484.50 and 20,798.58 is: 31,177.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,355.84 : 75,484.50 = 20,798.58 : x
  2. Step 2: Convert to fraction form
    50,355.84/75,484.50 = 20,798.58/x
  3. Step 3: Cross multiply
    50,355.84x = 75,484.50 × 20,798.58
  4. Step 4: Simplify right side
    50,355.84x = 1,569,970,412.01
  5. Step 5: Solve for x
    x = 1,569,970,412.01/50,355.84
  6. Step 6: Final answer
    x = 31,177.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.