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Finding the Fourth Proportional to 13,013.41, 17,958.48 and 7,045.08

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Solution

The fourth proportional to 13,013.41, 17,958.48 and 7,045.08 is: 9,722.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.41 : 17,958.48 = 7,045.08 : x
  2. Step 2: Convert to fraction form
    13,013.41/17,958.48 = 7,045.08/x
  3. Step 3: Cross multiply
    13,013.41x = 17,958.48 × 7,045.08
  4. Step 4: Simplify right side
    13,013.41x = 126,518,893.96
  5. Step 5: Solve for x
    x = 126,518,893.96/13,013.41
  6. Step 6: Final answer
    x = 9,722.19

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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.