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Finding the Fourth Proportional to 15,672,215.14, 21,626,471.01 and 8,795,368.60

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Solution

The fourth proportional to 15,672,215.14, 21,626,471.01 and 8,795,368.60 is: 12,136,943.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,672,215.14 : 21,626,471.01 = 8,795,368.60 : x
  2. Step 2: Convert to fraction form
    15,672,215.14/21,626,471.01 = 8,795,368.60/x
  3. Step 3: Cross multiply
    15,672,215.14x = 21,626,471.01 × 8,795,368.60
  4. Step 4: Simplify right side
    15,672,215.14x = 190,212,784,050,164.28
  5. Step 5: Solve for x
    x = 190,212,784,050,164.28/15,672,215.14
  6. Step 6: Final answer
    x = 12,136,943.14

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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.