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Finding the Fourth Proportional to 5,360.76, 8,038.19 and 1,661.96

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Solution

The fourth proportional to 5,360.76, 8,038.19 and 1,661.96 is: 2,492.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.76 : 8,038.19 = 1,661.96 : x
  2. Step 2: Convert to fraction form
    5,360.76/8,038.19 = 1,661.96/x
  3. Step 3: Cross multiply
    5,360.76x = 8,038.19 × 1,661.96
  4. Step 4: Simplify right side
    5,360.76x = 13,359,174.50
  5. Step 5: Solve for x
    x = 13,359,174.50/5,360.76
  6. Step 6: Final answer
    x = 2,492.03

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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.