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Finding the Fourth Proportional to 17,943,606.70, 26,915,410.05 and 16,668,148.30

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Solution

The fourth proportional to 17,943,606.70, 26,915,410.05 and 16,668,148.30 is: 25,002,222.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,943,606.70 : 26,915,410.05 = 16,668,148.30 : x
  2. Step 2: Convert to fraction form
    17,943,606.70/26,915,410.05 = 16,668,148.30/x
  3. Step 3: Cross multiply
    17,943,606.70x = 26,915,410.05 × 16,668,148.30
  4. Step 4: Simplify right side
    17,943,606.70x = 448,630,046,268,710.44
  5. Step 5: Solve for x
    x = 448,630,046,268,710.44/17,943,606.70
  6. Step 6: Final answer
    x = 25,002,222.45

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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.