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Finding the Fourth Proportional to 8,590.92, 11,855.51 and 5,008.01

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Solution

The fourth proportional to 8,590.92, 11,855.51 and 5,008.01 is: 6,911.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.92 : 11,855.51 = 5,008.01 : x
  2. Step 2: Convert to fraction form
    8,590.92/11,855.51 = 5,008.01/x
  3. Step 3: Cross multiply
    8,590.92x = 11,855.51 × 5,008.01
  4. Step 4: Simplify right side
    8,590.92x = 59,372,428.32
  5. Step 5: Solve for x
    x = 59,372,428.32/8,590.92
  6. Step 6: Final answer
    x = 6,911.07

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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.