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Finding the Fourth Proportional to 16,666.40, 24,999.60 and 6,800.60

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Solution

The fourth proportional to 16,666.40, 24,999.60 and 6,800.60 is: 10,200.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,666.40 : 24,999.60 = 6,800.60 : x
  2. Step 2: Convert to fraction form
    16,666.40/24,999.60 = 6,800.60/x
  3. Step 3: Cross multiply
    16,666.40x = 24,999.60 × 6,800.60
  4. Step 4: Simplify right side
    16,666.40x = 170,012,279.76
  5. Step 5: Solve for x
    x = 170,012,279.76/16,666.40
  6. Step 6: Final answer
    x = 10,200.90

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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.