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Finding the Fourth Proportional to 4,659.88, 6,430.63 and 2,564

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Solution

The fourth proportional to 4,659.88, 6,430.63 and 2,564 is: 3,538.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,659.88 : 6,430.63 = 2,564 : x
  2. Step 2: Convert to fraction form
    4,659.88/6,430.63 = 2,564/x
  3. Step 3: Cross multiply
    4,659.88x = 6,430.63 × 2,564
  4. Step 4: Simplify right side
    4,659.88x = 16,488,128.91
  5. Step 5: Solve for x
    x = 16,488,128.91/4,659.88
  6. Step 6: Final answer
    x = 3,538.32

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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.