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Finding the Fourth Proportional to 10,515,087.20, 14,760,935.20 and 10,515,087.20

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Solution

The fourth proportional to 10,515,087.20, 14,760,935.20 and 10,515,087.20 is: 14,760,935.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,515,087.20 : 14,760,935.20 = 10,515,087.20 : x
  2. Step 2: Convert to fraction form
    10,515,087.20/14,760,935.20 = 10,515,087.20/x
  3. Step 3: Cross multiply
    10,515,087.20x = 14,760,935.20 × 10,515,087.20
  4. Step 4: Simplify right side
    10,515,087.20x = 155,212,520,781,549.41
  5. Step 5: Solve for x
    x = 155,212,520,781,549.41/10,515,087.20
  6. Step 6: Final answer
    x = 14,760,935.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.