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Finding the Fourth Proportional to 29,280.64, 43,920.96 and 9,559.32

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Solution

The fourth proportional to 29,280.64, 43,920.96 and 9,559.32 is: 14,338.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,280.64 : 43,920.96 = 9,559.32 : x
  2. Step 2: Convert to fraction form
    29,280.64/43,920.96 = 9,559.32/x
  3. Step 3: Cross multiply
    29,280.64x = 43,920.96 × 9,559.32
  4. Step 4: Simplify right side
    29,280.64x = 419,854,511.35
  5. Step 5: Solve for x
    x = 419,854,511.35/29,280.64
  6. Step 6: Final answer
    x = 14,338.98

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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.