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Finding the Fourth Proportional to 8,402.79, 11,597.94 and 4,865.52

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Solution

The fourth proportional to 8,402.79, 11,597.94 and 4,865.52 is: 6,715.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,402.79 : 11,597.94 = 4,865.52 : x
  2. Step 2: Convert to fraction form
    8,402.79/11,597.94 = 4,865.52/x
  3. Step 3: Cross multiply
    8,402.79x = 11,597.94 × 4,865.52
  4. Step 4: Simplify right side
    8,402.79x = 56,430,009.03
  5. Step 5: Solve for x
    x = 56,430,009.03/8,402.79
  6. Step 6: Final answer
    x = 6,715.63

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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.