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Finding the Fourth Proportional to 14,553,965.40, 20,405,411.40 and 14,553,965.40

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Solution

The fourth proportional to 14,553,965.40, 20,405,411.40 and 14,553,965.40 is: 20,405,411.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,553,965.40 : 20,405,411.40 = 14,553,965.40 : x
  2. Step 2: Convert to fraction form
    14,553,965.40/20,405,411.40 = 14,553,965.40/x
  3. Step 3: Cross multiply
    14,553,965.40x = 20,405,411.40 × 14,553,965.40
  4. Step 4: Simplify right side
    14,553,965.40x = 296,979,651,488,365.56
  5. Step 5: Solve for x
    x = 296,979,651,488,365.56/14,553,965.40
  6. Step 6: Final answer
    x = 20,405,411.40

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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.