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Finding the Fourth Proportional to 19,696,477.14, 29,548,701.68 and 6,917,978.30

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Solution

The fourth proportional to 19,696,477.14, 29,548,701.68 and 6,917,978.30 is: 10,378,367.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,696,477.14 : 29,548,701.68 = 6,917,978.30 : x
  2. Step 2: Convert to fraction form
    19,696,477.14/29,548,701.68 = 6,917,978.30/x
  3. Step 3: Cross multiply
    19,696,477.14x = 29,548,701.68 × 6,917,978.30
  4. Step 4: Simplify right side
    19,696,477.14x = 204,417,276,833,080.16
  5. Step 5: Solve for x
    x = 204,417,276,833,080.16/19,696,477.14
  6. Step 6: Final answer
    x = 10,378,367.43

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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.