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Finding the Fourth Proportional to 50,549.55, 75,854.70 and 20,964.30

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Solution

The fourth proportional to 50,549.55, 75,854.70 and 20,964.30 is: 31,459.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,549.55 : 75,854.70 = 20,964.30 : x
  2. Step 2: Convert to fraction form
    50,549.55/75,854.70 = 20,964.30/x
  3. Step 3: Cross multiply
    50,549.55x = 75,854.70 × 20,964.30
  4. Step 4: Simplify right side
    50,549.55x = 1,590,240,687.21
  5. Step 5: Solve for x
    x = 1,590,240,687.21/50,549.55
  6. Step 6: Final answer
    x = 31,459.05

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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.