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Finding the Fourth Proportional to 7,574.92, 10,454.07 and 4,389.10

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Solution

The fourth proportional to 7,574.92, 10,454.07 and 4,389.10 is: 6,057.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,574.92 : 10,454.07 = 4,389.10 : x
  2. Step 2: Convert to fraction form
    7,574.92/10,454.07 = 4,389.10/x
  3. Step 3: Cross multiply
    7,574.92x = 10,454.07 × 4,389.10
  4. Step 4: Simplify right side
    7,574.92x = 45,883,958.64
  5. Step 5: Solve for x
    x = 45,883,958.64/7,574.92
  6. Step 6: Final answer
    x = 6,057.35

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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.