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Finding the Fourth Proportional to 7,118,507.47, 9,823,537.22 and 3,855,322.36

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Solution

The fourth proportional to 7,118,507.47, 9,823,537.22 and 3,855,322.36 is: 5,320,343.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118,507.47 : 9,823,537.22 = 3,855,322.36 : x
  2. Step 2: Convert to fraction form
    7,118,507.47/9,823,537.22 = 3,855,322.36/x
  3. Step 3: Cross multiply
    7,118,507.47x = 9,823,537.22 × 3,855,322.36
  4. Step 4: Simplify right side
    7,118,507.47x = 37,872,902,649,440.55
  5. Step 5: Solve for x
    x = 37,872,902,649,440.55/7,118,507.47
  6. Step 6: Final answer
    x = 5,320,343.18

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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.