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Finding the Fourth Proportional to 9,979.95, 14,980.32 and 7,350.44

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Solution

The fourth proportional to 9,979.95, 14,980.32 and 7,350.44 is: 11,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,979.95 : 14,980.32 = 7,350.44 : x
  2. Step 2: Convert to fraction form
    9,979.95/14,980.32 = 7,350.44/x
  3. Step 3: Cross multiply
    9,979.95x = 14,980.32 × 7,350.44
  4. Step 4: Simplify right side
    9,979.95x = 110,111,868.44
  5. Step 5: Solve for x
    x = 110,111,868.44/9,979.95
  6. Step 6: Final answer
    x = 11,033.30

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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.