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Finding the Fourth Proportional to 9,643.40, 14,467.80 and 4,099.40

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Solution

The fourth proportional to 9,643.40, 14,467.80 and 4,099.40 is: 6,150.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,643.40 : 14,467.80 = 4,099.40 : x
  2. Step 2: Convert to fraction form
    9,643.40/14,467.80 = 4,099.40/x
  3. Step 3: Cross multiply
    9,643.40x = 14,467.80 × 4,099.40
  4. Step 4: Simplify right side
    9,643.40x = 59,309,299.32
  5. Step 5: Solve for x
    x = 59,309,299.32/9,643.40
  6. Step 6: Final answer
    x = 6,150.25

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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.