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Finding the Fourth Proportional to 5,012.76, 6,907.50 and 4,134.72

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Solution

The fourth proportional to 5,012.76, 6,907.50 and 4,134.72 is: 5,697.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,012.76 : 6,907.50 = 4,134.72 : x
  2. Step 2: Convert to fraction form
    5,012.76/6,907.50 = 4,134.72/x
  3. Step 3: Cross multiply
    5,012.76x = 6,907.50 × 4,134.72
  4. Step 4: Simplify right side
    5,012.76x = 28,560,578.40
  5. Step 5: Solve for x
    x = 28,560,578.40/5,012.76
  6. Step 6: Final answer
    x = 5,697.58

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.