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Finding the Fourth Proportional to 6,656.87, 9,188.08 and 4,003.77

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Solution

The fourth proportional to 6,656.87, 9,188.08 and 4,003.77 is: 5,526.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,656.87 : 9,188.08 = 4,003.77 : x
  2. Step 2: Convert to fraction form
    6,656.87/9,188.08 = 4,003.77/x
  3. Step 3: Cross multiply
    6,656.87x = 9,188.08 × 4,003.77
  4. Step 4: Simplify right side
    6,656.87x = 36,786,959.06
  5. Step 5: Solve for x
    x = 36,786,959.06/6,656.87
  6. Step 6: Final answer
    x = 5,526.16

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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.