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Finding the Fourth Proportional to 13,813,648.06, 20,734,843.50 and 10,174,486.90

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Solution

The fourth proportional to 13,813,648.06, 20,734,843.50 and 10,174,486.90 is: 15,272,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,813,648.06 : 20,734,843.50 = 10,174,486.90 : x
  2. Step 2: Convert to fraction form
    13,813,648.06/20,734,843.50 = 10,174,486.90/x
  3. Step 3: Cross multiply
    13,813,648.06x = 20,734,843.50 × 10,174,486.90
  4. Step 4: Simplify right side
    13,813,648.06x = 210,966,393,564,300.16
  5. Step 5: Solve for x
    x = 210,966,393,564,300.16/13,813,648.06
  6. Step 6: Final answer
    x = 15,272,315.66

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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.