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Finding the Fourth Proportional to 7,574.76, 10,453.08 and 4,217.58

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Solution

The fourth proportional to 7,574.76, 10,453.08 and 4,217.58 is: 5,820.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,574.76 : 10,453.08 = 4,217.58 : x
  2. Step 2: Convert to fraction form
    7,574.76/10,453.08 = 4,217.58/x
  3. Step 3: Cross multiply
    7,574.76x = 10,453.08 × 4,217.58
  4. Step 4: Simplify right side
    7,574.76x = 44,086,701.15
  5. Step 5: Solve for x
    x = 44,086,701.15/7,574.76
  6. Step 6: Final answer
    x = 5,820.21

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Half 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.