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Finding the Fourth Proportional to 7,822.92, 10,792.02 and 4,509

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Solution

The fourth proportional to 7,822.92, 10,792.02 and 4,509 is: 6,220.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,822.92 : 10,792.02 = 4,509 : x
  2. Step 2: Convert to fraction form
    7,822.92/10,792.02 = 4,509/x
  3. Step 3: Cross multiply
    7,822.92x = 10,792.02 × 4,509
  4. Step 4: Simplify right side
    7,822.92x = 48,661,218.18
  5. Step 5: Solve for x
    x = 48,661,218.18/7,822.92
  6. Step 6: Final answer
    x = 6,220.34

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1.5x scale

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.