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Finding the Fourth Proportional to 15,272,352.80, 22,908,010.80 and 3,912,912.80

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Solution

The fourth proportional to 15,272,352.80, 22,908,010.80 and 3,912,912.80 is: 5,869,236.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272,352.80 : 22,908,010.80 = 3,912,912.80 : x
  2. Step 2: Convert to fraction form
    15,272,352.80/22,908,010.80 = 3,912,912.80/x
  3. Step 3: Cross multiply
    15,272,352.80x = 22,908,010.80 × 3,912,912.80
  4. Step 4: Simplify right side
    15,272,352.80x = 89,637,048,681,858.23
  5. Step 5: Solve for x
    x = 89,637,048,681,858.23/15,272,352.80
  6. Step 6: Final answer
    x = 5,869,236.38

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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.