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Finding the Fourth Proportional to 6,507,953.76, 8,981,408.49 and 3,607,466.88

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Solution

The fourth proportional to 6,507,953.76, 8,981,408.49 and 3,607,466.88 is: 4,978,543.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,507,953.76 : 8,981,408.49 = 3,607,466.88 : x
  2. Step 2: Convert to fraction form
    6,507,953.76/8,981,408.49 = 3,607,466.88/x
  3. Step 3: Cross multiply
    6,507,953.76x = 8,981,408.49 × 3,607,466.88
  4. Step 4: Simplify right side
    6,507,953.76x = 32,400,133,663,425.81
  5. Step 5: Solve for x
    x = 32,400,133,663,425.81/6,507,953.76
  6. Step 6: Final answer
    x = 4,978,543.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.