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Finding the Fourth Proportional to 52,469.70, 78,704.55 and 15,533.70

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Solution

The fourth proportional to 52,469.70, 78,704.55 and 15,533.70 is: 23,300.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,469.70 : 78,704.55 = 15,533.70 : x
  2. Step 2: Convert to fraction form
    52,469.70/78,704.55 = 15,533.70/x
  3. Step 3: Cross multiply
    52,469.70x = 78,704.55 × 15,533.70
  4. Step 4: Simplify right side
    52,469.70x = 1,222,572,868.34
  5. Step 5: Solve for x
    x = 1,222,572,868.34/52,469.70
  6. Step 6: Final answer
    x = 23,300.55

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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.