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Finding the Fourth Proportional to 9,920.04, 14,879.88 and 3,346.08

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Solution

The fourth proportional to 9,920.04, 14,879.88 and 3,346.08 is: 5,019.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920.04 : 14,879.88 = 3,346.08 : x
  2. Step 2: Convert to fraction form
    9,920.04/14,879.88 = 3,346.08/x
  3. Step 3: Cross multiply
    9,920.04x = 14,879.88 × 3,346.08
  4. Step 4: Simplify right side
    9,920.04x = 49,789,268.87
  5. Step 5: Solve for x
    x = 49,789,268.87/9,920.04
  6. Step 6: Final answer
    x = 5,019.06

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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.