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Finding the Fourth Proportional to 6,642,833.70, 9,964,250.55 and 5,036,700.90

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Solution

The fourth proportional to 6,642,833.70, 9,964,250.55 and 5,036,700.90 is: 7,555,051.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,642,833.70 : 9,964,250.55 = 5,036,700.90 : x
  2. Step 2: Convert to fraction form
    6,642,833.70/9,964,250.55 = 5,036,700.90/x
  3. Step 3: Cross multiply
    6,642,833.70x = 9,964,250.55 × 5,036,700.90
  4. Step 4: Simplify right side
    6,642,833.70x = 50,186,949,713,010.50
  5. Step 5: Solve for x
    x = 50,186,949,713,010.50/6,642,833.70
  6. Step 6: Final answer
    x = 7,555,051.35

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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.