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Finding the Fourth Proportional to 9,966,576.15, 13,962,654.45 and 9,966,576.15

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Solution

The fourth proportional to 9,966,576.15, 13,962,654.45 and 9,966,576.15 is: 13,962,654.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966,576.15 : 13,962,654.45 = 9,966,576.15 : x
  2. Step 2: Convert to fraction form
    9,966,576.15/13,962,654.45 = 9,966,576.15/x
  3. Step 3: Cross multiply
    9,966,576.15x = 13,962,654.45 × 9,966,576.15
  4. Step 4: Simplify right side
    9,966,576.15x = 139,159,858,832,061.36
  5. Step 5: Solve for x
    x = 139,159,858,832,061.36/9,966,576.15
  6. Step 6: Final answer
    x = 13,962,654.45

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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.