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Finding the Fourth Proportional to 8,590.59, 12,889.95 and 4,694.88

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Solution

The fourth proportional to 8,590.59, 12,889.95 and 4,694.88 is: 7,044.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.59 : 12,889.95 = 4,694.88 : x
  2. Step 2: Convert to fraction form
    8,590.59/12,889.95 = 4,694.88/x
  3. Step 3: Cross multiply
    8,590.59x = 12,889.95 × 4,694.88
  4. Step 4: Simplify right side
    8,590.59x = 60,516,768.46
  5. Step 5: Solve for x
    x = 60,516,768.46/8,590.59
  6. Step 6: Final answer
    x = 7,044.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.