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Finding the Fourth Proportional to 43,643.44, 65,475.64 and 14,064.08

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Solution

The fourth proportional to 43,643.44, 65,475.64 and 14,064.08 is: 21,099.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,643.44 : 65,475.64 = 14,064.08 : x
  2. Step 2: Convert to fraction form
    43,643.44/65,475.64 = 14,064.08/x
  3. Step 3: Cross multiply
    43,643.44x = 65,475.64 × 14,064.08
  4. Step 4: Simplify right side
    43,643.44x = 920,854,639.01
  5. Step 5: Solve for x
    x = 920,854,639.01/43,643.44
  6. Step 6: Final answer
    x = 21,099.50

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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.