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Finding the Fourth Proportional to 8,590.74, 11,854.97 and 5,006.49

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Solution

The fourth proportional to 8,590.74, 11,854.97 and 5,006.49 is: 6,908.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.74 : 11,854.97 = 5,006.49 : x
  2. Step 2: Convert to fraction form
    8,590.74/11,854.97 = 5,006.49/x
  3. Step 3: Cross multiply
    8,590.74x = 11,854.97 × 5,006.49
  4. Step 4: Simplify right side
    8,590.74x = 59,351,788.76
  5. Step 5: Solve for x
    x = 59,351,788.76/8,590.74
  6. Step 6: Final answer
    x = 6,908.81

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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.