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Finding the Fourth Proportional to 7,267.30, 10,029.81 and 4,909.30

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Solution

The fourth proportional to 7,267.30, 10,029.81 and 4,909.30 is: 6,775.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,267.30 : 10,029.81 = 4,909.30 : x
  2. Step 2: Convert to fraction form
    7,267.30/10,029.81 = 4,909.30/x
  3. Step 3: Cross multiply
    7,267.30x = 10,029.81 × 4,909.30
  4. Step 4: Simplify right side
    7,267.30x = 49,239,346.23
  5. Step 5: Solve for x
    x = 49,239,346.23/7,267.30
  6. Step 6: Final answer
    x = 6,775.47

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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.