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Finding the Fourth Proportional to 7,574.98, 10,453.41 and 4,218.22

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Solution

The fourth proportional to 7,574.98, 10,453.41 and 4,218.22 is: 5,821.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,574.98 : 10,453.41 = 4,218.22 : x
  2. Step 2: Convert to fraction form
    7,574.98/10,453.41 = 4,218.22/x
  3. Step 3: Cross multiply
    7,574.98x = 10,453.41 × 4,218.22
  4. Step 4: Simplify right side
    7,574.98x = 44,094,783.13
  5. Step 5: Solve for x
    x = 44,094,783.13/7,574.98
  6. Step 6: Final answer
    x = 5,821.11

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Half scale
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Double scale
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Similar ratio
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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.