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Finding the Fourth Proportional to 12,358.22, 17,053.05 and 7,052

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Solution

The fourth proportional to 12,358.22, 17,053.05 and 7,052 is: 9,731.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.22 : 17,053.05 = 7,052 : x
  2. Step 2: Convert to fraction form
    12,358.22/17,053.05 = 7,052/x
  3. Step 3: Cross multiply
    12,358.22x = 17,053.05 × 7,052
  4. Step 4: Simplify right side
    12,358.22x = 120,258,108.60
  5. Step 5: Solve for x
    x = 120,258,108.60/12,358.22
  6. Step 6: Final answer
    x = 9,731.02

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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.