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Finding the Fourth Proportional to 51,007.45, 71,468.75 and 51,007.45

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Solution

The fourth proportional to 51,007.45, 71,468.75 and 51,007.45 is: 71,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,007.45 : 71,468.75 = 51,007.45 : x
  2. Step 2: Convert to fraction form
    51,007.45/71,468.75 = 51,007.45/x
  3. Step 3: Cross multiply
    51,007.45x = 71,468.75 × 51,007.45
  4. Step 4: Simplify right side
    51,007.45x = 3,645,438,692.19
  5. Step 5: Solve for x
    x = 3,645,438,692.19/51,007.45
  6. Step 6: Final answer
    x = 71,468.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.