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Finding the Fourth Proportional to 6,999.54, 9,656.60 and 4,874.51

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Solution

The fourth proportional to 6,999.54, 9,656.60 and 4,874.51 is: 6,724.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,999.54 : 9,656.60 = 4,874.51 : x
  2. Step 2: Convert to fraction form
    6,999.54/9,656.60 = 4,874.51/x
  3. Step 3: Cross multiply
    6,999.54x = 9,656.60 × 4,874.51
  4. Step 4: Simplify right side
    6,999.54x = 47,071,120.61
  5. Step 5: Solve for x
    x = 47,071,120.61/6,999.54
  6. Step 6: Final answer
    x = 6,724.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.