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Finding the Fourth Proportional to 16,800.79, 25,211.00 and 6,278.06

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Solution

The fourth proportional to 16,800.79, 25,211.00 and 6,278.06 is: 9,420.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,800.79 : 25,211.00 = 6,278.06 : x
  2. Step 2: Convert to fraction form
    16,800.79/25,211.00 = 6,278.06/x
  3. Step 3: Cross multiply
    16,800.79x = 25,211.00 × 6,278.06
  4. Step 4: Simplify right side
    16,800.79x = 158,276,072.26
  5. Step 5: Solve for x
    x = 158,276,072.26/16,800.79
  6. Step 6: Final answer
    x = 9,420.75

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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.