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Finding the Fourth Proportional to 7,533.32, 11,299.11 and 1,987.10

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Solution

The fourth proportional to 7,533.32, 11,299.11 and 1,987.10 is: 2,980.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,533.32 : 11,299.11 = 1,987.10 : x
  2. Step 2: Convert to fraction form
    7,533.32/11,299.11 = 1,987.10/x
  3. Step 3: Cross multiply
    7,533.32x = 11,299.11 × 1,987.10
  4. Step 4: Simplify right side
    7,533.32x = 22,452,439.91
  5. Step 5: Solve for x
    x = 22,452,439.91/7,533.32
  6. Step 6: Final answer
    x = 2,980.42

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.