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Finding the Fourth Proportional to 8,605.65, 11,873.77 and 5,018.46

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Solution

The fourth proportional to 8,605.65, 11,873.77 and 5,018.46 is: 6,924.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,605.65 : 11,873.77 = 5,018.46 : x
  2. Step 2: Convert to fraction form
    8,605.65/11,873.77 = 5,018.46/x
  3. Step 3: Cross multiply
    8,605.65x = 11,873.77 × 5,018.46
  4. Step 4: Simplify right side
    8,605.65x = 59,588,039.79
  5. Step 5: Solve for x
    x = 59,588,039.79/8,605.65
  6. Step 6: Final answer
    x = 6,924.29

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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.