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Finding the Fourth Proportional to 52,000.20, 78,012.90 and 15,064.20

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Solution

The fourth proportional to 52,000.20, 78,012.90 and 15,064.20 is: 22,599.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,000.20 : 78,012.90 = 15,064.20 : x
  2. Step 2: Convert to fraction form
    52,000.20/78,012.90 = 15,064.20/x
  3. Step 3: Cross multiply
    52,000.20x = 78,012.90 × 15,064.20
  4. Step 4: Simplify right side
    52,000.20x = 1,175,201,928.18
  5. Step 5: Solve for x
    x = 1,175,201,928.18/52,000.20
  6. Step 6: Final answer
    x = 22,599.95

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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.