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Finding the Fourth Proportional to 7,801.01, 11,695.04 and 5,454.31

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Solution

The fourth proportional to 7,801.01, 11,695.04 and 5,454.31 is: 8,176.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,801.01 : 11,695.04 = 5,454.31 : x
  2. Step 2: Convert to fraction form
    7,801.01/11,695.04 = 5,454.31/x
  3. Step 3: Cross multiply
    7,801.01x = 11,695.04 × 5,454.31
  4. Step 4: Simplify right side
    7,801.01x = 63,788,287.88
  5. Step 5: Solve for x
    x = 63,788,287.88/7,801.01
  6. Step 6: Final answer
    x = 8,176.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.