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Finding the Fourth Proportional to 8,421.50, 11,623.07 and 5,066.17

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Solution

The fourth proportional to 8,421.50, 11,623.07 and 5,066.17 is: 6,992.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421.50 : 11,623.07 = 5,066.17 : x
  2. Step 2: Convert to fraction form
    8,421.50/11,623.07 = 5,066.17/x
  3. Step 3: Cross multiply
    8,421.50x = 11,623.07 × 5,066.17
  4. Step 4: Simplify right side
    8,421.50x = 58,884,450.59
  5. Step 5: Solve for x
    x = 58,884,450.59/8,421.50
  6. Step 6: Final answer
    x = 6,992.15

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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.