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Finding the Fourth Proportional to 14,339,911.20, 21,509,866.80 and 5,824,327.20

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Solution

The fourth proportional to 14,339,911.20, 21,509,866.80 and 5,824,327.20 is: 8,736,490.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,339,911.20 : 21,509,866.80 = 5,824,327.20 : x
  2. Step 2: Convert to fraction form
    14,339,911.20/21,509,866.80 = 5,824,327.20/x
  3. Step 3: Cross multiply
    14,339,911.20x = 21,509,866.80 × 5,824,327.20
  4. Step 4: Simplify right side
    14,339,911.20x = 125,280,502,271,616.97
  5. Step 5: Solve for x
    x = 125,280,502,271,616.97/14,339,911.20
  6. Step 6: Final answer
    x = 8,736,490.80

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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.