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Finding the Fourth Proportional to 5,715.72, 8,573.76 and 2,253

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Solution

The fourth proportional to 5,715.72, 8,573.76 and 2,253 is: 3,379.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,715.72 : 8,573.76 = 2,253 : x
  2. Step 2: Convert to fraction form
    5,715.72/8,573.76 = 2,253/x
  3. Step 3: Cross multiply
    5,715.72x = 8,573.76 × 2,253
  4. Step 4: Simplify right side
    5,715.72x = 19,316,681.28
  5. Step 5: Solve for x
    x = 19,316,681.28/5,715.72
  6. Step 6: Final answer
    x = 3,379.57

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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.