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Finding the Fourth Proportional to 7,162.01, 9,891.08 and 4,929.65

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Solution

The fourth proportional to 7,162.01, 9,891.08 and 4,929.65 is: 6,808.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.01 : 9,891.08 = 4,929.65 : x
  2. Step 2: Convert to fraction form
    7,162.01/9,891.08 = 4,929.65/x
  3. Step 3: Cross multiply
    7,162.01x = 9,891.08 × 4,929.65
  4. Step 4: Simplify right side
    7,162.01x = 48,759,488.42
  5. Step 5: Solve for x
    x = 48,759,488.42/7,162.01
  6. Step 6: Final answer
    x = 6,808.08

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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.