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Finding the Fourth Proportional to 7,700.86, 10,626.96 and 4,343.64

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Solution

The fourth proportional to 7,700.86, 10,626.96 and 4,343.64 is: 5,994.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,700.86 : 10,626.96 = 4,343.64 : x
  2. Step 2: Convert to fraction form
    7,700.86/10,626.96 = 4,343.64/x
  3. Step 3: Cross multiply
    7,700.86x = 10,626.96 × 4,343.64
  4. Step 4: Simplify right side
    7,700.86x = 46,159,635.40
  5. Step 5: Solve for x
    x = 46,159,635.40/7,700.86
  6. Step 6: Final answer
    x = 5,994.09

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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.