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Finding the Fourth Proportional to 8,373.11, 11,554.45 and 5,721.17

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Solution

The fourth proportional to 8,373.11, 11,554.45 and 5,721.17 is: 7,894.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,373.11 : 11,554.45 = 5,721.17 : x
  2. Step 2: Convert to fraction form
    8,373.11/11,554.45 = 5,721.17/x
  3. Step 3: Cross multiply
    8,373.11x = 11,554.45 × 5,721.17
  4. Step 4: Simplify right side
    8,373.11x = 66,104,900.63
  5. Step 5: Solve for x
    x = 66,104,900.63/8,373.11
  6. Step 6: Final answer
    x = 7,894.91

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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.