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Finding the Fourth Proportional to 7,860.80, 10,848.08 and 4,674.44

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Solution

The fourth proportional to 7,860.80, 10,848.08 and 4,674.44 is: 6,450.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.80 : 10,848.08 = 4,674.44 : x
  2. Step 2: Convert to fraction form
    7,860.80/10,848.08 = 4,674.44/x
  3. Step 3: Cross multiply
    7,860.80x = 10,848.08 × 4,674.44
  4. Step 4: Simplify right side
    7,860.80x = 50,708,699.08
  5. Step 5: Solve for x
    x = 50,708,699.08/7,860.80
  6. Step 6: Final answer
    x = 6,450.83

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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.