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Finding the Fourth Proportional to 17,370.57, 23,971.35 and 9,412.99

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Solution

The fourth proportional to 17,370.57, 23,971.35 and 9,412.99 is: 12,989.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,370.57 : 23,971.35 = 9,412.99 : x
  2. Step 2: Convert to fraction form
    17,370.57/23,971.35 = 9,412.99/x
  3. Step 3: Cross multiply
    17,370.57x = 23,971.35 × 9,412.99
  4. Step 4: Simplify right side
    17,370.57x = 225,642,077.84
  5. Step 5: Solve for x
    x = 225,642,077.84/17,370.57
  6. Step 6: Final answer
    x = 12,989.91

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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.