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Finding the Fourth Proportional to 6,643,139.70, 9,964,709.55 and 6,076,269.30

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Solution

The fourth proportional to 6,643,139.70, 9,964,709.55 and 6,076,269.30 is: 9,114,403.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643,139.70 : 9,964,709.55 = 6,076,269.30 : x
  2. Step 2: Convert to fraction form
    6,643,139.70/9,964,709.55 = 6,076,269.30/x
  3. Step 3: Cross multiply
    6,643,139.70x = 9,964,709.55 × 6,076,269.30
  4. Step 4: Simplify right side
    6,643,139.70x = 60,548,258,722,081.82
  5. Step 5: Solve for x
    x = 60,548,258,722,081.82/6,643,139.70
  6. Step 6: Final answer
    x = 9,114,403.95

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Double scale
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Similar ratio
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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.