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Finding the Fourth Proportional to 52,473.58, 78,722.68 and 20,885.56

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Solution

The fourth proportional to 52,473.58, 78,722.68 and 20,885.56 is: 31,333.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,473.58 : 78,722.68 = 20,885.56 : x
  2. Step 2: Convert to fraction form
    52,473.58/78,722.68 = 20,885.56/x
  3. Step 3: Cross multiply
    52,473.58x = 78,722.68 × 20,885.56
  4. Step 4: Simplify right side
    52,473.58x = 1,644,167,256.50
  5. Step 5: Solve for x
    x = 1,644,167,256.50/52,473.58
  6. Step 6: Final answer
    x = 31,333.24

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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.