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Finding the Fourth Proportional to 17,390.89, 23,999.42 and 9,837.06

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Solution

The fourth proportional to 17,390.89, 23,999.42 and 9,837.06 is: 13,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,390.89 : 23,999.42 = 9,837.06 : x
  2. Step 2: Convert to fraction form
    17,390.89/23,999.42 = 9,837.06/x
  3. Step 3: Cross multiply
    17,390.89x = 23,999.42 × 9,837.06
  4. Step 4: Simplify right side
    17,390.89x = 236,083,639.10
  5. Step 5: Solve for x
    x = 236,083,639.10/17,390.89
  6. Step 6: Final answer
    x = 13,575.13

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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.