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Finding the Third Proportional to 47,688 and 75,495

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Solution

The third proportional to 47,688 and 75,495 is: 119,516.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,688 : 75,495 = 75,495 : x
  2. Step 2: Convert to fraction form
    47,688/75,495 = 75,495/x
  3. Step 3: Cross multiply
    47,688x = 75,495 × 75,495
  4. Step 4: Simplify right side
    47,688x = 5,699,495,025
  5. Step 5: Solve for x
    x = 5,699,495,025/47,688
  6. Step 6: Final answer
    x = 119,516.34

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.