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Finding the Fourth Proportional to 9,920.02, 14,879.64 and 3,346.06

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Solution

The fourth proportional to 9,920.02, 14,879.64 and 3,346.06 is: 5,018.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920.02 : 14,879.64 = 3,346.06 : x
  2. Step 2: Convert to fraction form
    9,920.02/14,879.64 = 3,346.06/x
  3. Step 3: Cross multiply
    9,920.02x = 14,879.64 × 3,346.06
  4. Step 4: Simplify right side
    9,920.02x = 49,788,168.22
  5. Step 5: Solve for x
    x = 49,788,168.22/9,920.02
  6. Step 6: Final answer
    x = 5,018.96

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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.