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Finding the Fourth Proportional to 9,061.61, 13,649.51 and 8,508.04

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Solution

The fourth proportional to 9,061.61, 13,649.51 and 8,508.04 is: 12,815.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,061.61 : 13,649.51 = 8,508.04 : x
  2. Step 2: Convert to fraction form
    9,061.61/13,649.51 = 8,508.04/x
  3. Step 3: Cross multiply
    9,061.61x = 13,649.51 × 8,508.04
  4. Step 4: Simplify right side
    9,061.61x = 116,130,564.21
  5. Step 5: Solve for x
    x = 116,130,564.21/9,061.61
  6. Step 6: Final answer
    x = 12,815.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.