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Finding the Third Proportional to 7,804 and 12,358

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Solution

The third proportional to 7,804 and 12,358 is: 19,569.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,804 : 12,358 = 12,358 : x
  2. Step 2: Convert to fraction form
    7,804/12,358 = 12,358/x
  3. Step 3: Cross multiply
    7,804x = 12,358 × 12,358
  4. Step 4: Simplify right side
    7,804x = 152,720,164
  5. Step 5: Solve for x
    x = 152,720,164/7,804
  6. Step 6: Final answer
    x = 19,569.47

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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.