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Finding the Fourth Proportional to 7,652,681.72, 11,479,683.54 and 1,972,858.04

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Solution

The fourth proportional to 7,652,681.72, 11,479,683.54 and 1,972,858.04 is: 2,959,457.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,652,681.72 : 11,479,683.54 = 1,972,858.04 : x
  2. Step 2: Convert to fraction form
    7,652,681.72/11,479,683.54 = 1,972,858.04/x
  3. Step 3: Cross multiply
    7,652,681.72x = 11,479,683.54 × 1,972,858.04
  4. Step 4: Simplify right side
    7,652,681.72x = 22,647,785,968,544.66
  5. Step 5: Solve for x
    x = 22,647,785,968,544.66/7,652,681.72
  6. Step 6: Final answer
    x = 2,959,457.46

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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.