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Finding the Fourth Proportional to 8,358.22, 11,549.55 and 7,953.34

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Solution

The fourth proportional to 8,358.22, 11,549.55 and 7,953.34 is: 10,990.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,358.22 : 11,549.55 = 7,953.34 : x
  2. Step 2: Convert to fraction form
    8,358.22/11,549.55 = 7,953.34/x
  3. Step 3: Cross multiply
    8,358.22x = 11,549.55 × 7,953.34
  4. Step 4: Simplify right side
    8,358.22x = 91,857,498.00
  5. Step 5: Solve for x
    x = 91,857,498.00/8,358.22
  6. Step 6: Final answer
    x = 10,990.08

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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.