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Finding the Fourth Proportional to 8,695.47, 11,995.11 and 5,293.51

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Solution

The fourth proportional to 8,695.47, 11,995.11 and 5,293.51 is: 7,302.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,695.47 : 11,995.11 = 5,293.51 : x
  2. Step 2: Convert to fraction form
    8,695.47/11,995.11 = 5,293.51/x
  3. Step 3: Cross multiply
    8,695.47x = 11,995.11 × 5,293.51
  4. Step 4: Simplify right side
    8,695.47x = 63,496,234.74
  5. Step 5: Solve for x
    x = 63,496,234.74/8,695.47
  6. Step 6: Final answer
    x = 7,302.22

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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.