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Finding the Fourth Proportional to 15,695,579.70, 21,923,423.10 and 15,695,579.70

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Solution

The fourth proportional to 15,695,579.70, 21,923,423.10 and 15,695,579.70 is: 21,923,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,695,579.70 : 21,923,423.10 = 15,695,579.70 : x
  2. Step 2: Convert to fraction form
    15,695,579.70/21,923,423.10 = 15,695,579.70/x
  3. Step 3: Cross multiply
    15,695,579.70x = 21,923,423.10 × 15,695,579.70
  4. Step 4: Simplify right side
    15,695,579.70x = 344,100,834,562,871.06
  5. Step 5: Solve for x
    x = 344,100,834,562,871.06/15,695,579.70
  6. Step 6: Final answer
    x = 21,923,423.10

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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.