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Finding the Fourth Proportional to 55,903.80, 83,855.70 and 50,374.20

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Solution

The fourth proportional to 55,903.80, 83,855.70 and 50,374.20 is: 75,561.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,903.80 : 83,855.70 = 50,374.20 : x
  2. Step 2: Convert to fraction form
    55,903.80/83,855.70 = 50,374.20/x
  3. Step 3: Cross multiply
    55,903.80x = 83,855.70 × 50,374.20
  4. Step 4: Simplify right side
    55,903.80x = 4,224,163,802.94
  5. Step 5: Solve for x
    x = 4,224,163,802.94/55,903.80
  6. Step 6: Final answer
    x = 75,561.30

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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.