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Finding the Fourth Proportional to 15,987,784.30, 22,433,286.50 and 15,987,784.30

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Solution

The fourth proportional to 15,987,784.30, 22,433,286.50 and 15,987,784.30 is: 22,433,286.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,987,784.30 : 22,433,286.50 = 15,987,784.30 : x
  2. Step 2: Convert to fraction form
    15,987,784.30/22,433,286.50 = 15,987,784.30/x
  3. Step 3: Cross multiply
    15,987,784.30x = 22,433,286.50 × 15,987,784.30
  4. Step 4: Simplify right side
    15,987,784.30x = 358,658,545,702,101.94
  5. Step 5: Solve for x
    x = 358,658,545,702,101.94/15,987,784.30
  6. Step 6: Final answer
    x = 22,433,286.50

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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.