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Finding the Fourth Proportional to 14,106,872.17, 19,467,696.90 and 7,913,291.82

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Solution

The fourth proportional to 14,106,872.17, 19,467,696.90 and 7,913,291.82 is: 10,920,462.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,106,872.17 : 19,467,696.90 = 7,913,291.82 : x
  2. Step 2: Convert to fraction form
    14,106,872.17/19,467,696.90 = 7,913,291.82/x
  3. Step 3: Cross multiply
    14,106,872.17x = 19,467,696.90 × 7,913,291.82
  4. Step 4: Simplify right side
    14,106,872.17x = 154,053,566,633,009.34
  5. Step 5: Solve for x
    x = 154,053,566,633,009.34/14,106,872.17
  6. Step 6: Final answer
    x = 10,920,462.37

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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.