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Finding the Fourth Proportional to 4,720, 6,513.34 and 2,624

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Solution

The fourth proportional to 4,720, 6,513.34 and 2,624 is: 3,620.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720 : 6,513.34 = 2,624 : x
  2. Step 2: Convert to fraction form
    4,720/6,513.34 = 2,624/x
  3. Step 3: Cross multiply
    4,720x = 6,513.34 × 2,624
  4. Step 4: Simplify right side
    4,720x = 17,091,004.16
  5. Step 5: Solve for x
    x = 17,091,004.16/4,720
  6. Step 6: Final answer
    x = 3,620.98

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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.