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Finding the Fourth Proportional to 6,349.76, 9,513.12 and 4,688

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Solution

The fourth proportional to 6,349.76, 9,513.12 and 4,688 is: 7,023.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,349.76 : 9,513.12 = 4,688 : x
  2. Step 2: Convert to fraction form
    6,349.76/9,513.12 = 4,688/x
  3. Step 3: Cross multiply
    6,349.76x = 9,513.12 × 4,688
  4. Step 4: Simplify right side
    6,349.76x = 44,597,506.56
  5. Step 5: Solve for x
    x = 44,597,506.56/6,349.76
  6. Step 6: Final answer
    x = 7,023.49

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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.