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Finding the Fourth Proportional to 12,501.93, 17,246.79 and 8,917.68

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Solution

The fourth proportional to 12,501.93, 17,246.79 and 8,917.68 is: 12,302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501.93 : 17,246.79 = 8,917.68 : x
  2. Step 2: Convert to fraction form
    12,501.93/17,246.79 = 8,917.68/x
  3. Step 3: Cross multiply
    12,501.93x = 17,246.79 × 8,917.68
  4. Step 4: Simplify right side
    12,501.93x = 153,801,354.25
  5. Step 5: Solve for x
    x = 153,801,354.25/12,501.93
  6. Step 6: Final answer
    x = 12,302.21

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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.