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Finding the Fourth Proportional to 6,643,133.20, 9,964,699.80 and 6,076,262.80

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Solution

The fourth proportional to 6,643,133.20, 9,964,699.80 and 6,076,262.80 is: 9,114,394.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,643,133.20 : 9,964,699.80 = 6,076,262.80 : x
  2. Step 2: Convert to fraction form
    6,643,133.20/9,964,699.80 = 6,076,262.80/x
  3. Step 3: Cross multiply
    6,643,133.20x = 9,964,699.80 × 6,076,262.80
  4. Step 4: Simplify right side
    6,643,133.20x = 60,548,134,707,907.45
  5. Step 5: Solve for x
    x = 60,548,134,707,907.45/6,643,133.20
  6. Step 6: Final answer
    x = 9,114,394.20

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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.