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Finding the Fourth Proportional to 16,812.56, 25,203.80 and 6,945.54

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Solution

The fourth proportional to 16,812.56, 25,203.80 and 6,945.54 is: 10,412.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,812.56 : 25,203.80 = 6,945.54 : x
  2. Step 2: Convert to fraction form
    16,812.56/25,203.80 = 6,945.54/x
  3. Step 3: Cross multiply
    16,812.56x = 25,203.80 × 6,945.54
  4. Step 4: Simplify right side
    16,812.56x = 175,053,966.32
  5. Step 5: Solve for x
    x = 175,053,966.32/16,812.56
  6. Step 6: Final answer
    x = 10,412.10

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1.5x scale

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.