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Finding the Fourth Proportional to 10,201,410.80, 15,266,686.80 and 7,012,764.80

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Solution

The fourth proportional to 10,201,410.80, 15,266,686.80 and 7,012,764.80 is: 10,494,791.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,201,410.80 : 15,266,686.80 = 7,012,764.80 : x
  2. Step 2: Convert to fraction form
    10,201,410.80/15,266,686.80 = 7,012,764.80/x
  3. Step 3: Cross multiply
    10,201,410.80x = 15,266,686.80 × 7,012,764.80
  4. Step 4: Simplify right side
    10,201,410.80x = 107,061,683,803,664.64
  5. Step 5: Solve for x
    x = 107,061,683,803,664.64/10,201,410.80
  6. Step 6: Final answer
    x = 10,494,791.94

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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.