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Finding the Fourth Proportional to 13,167,332.70, 18,446,862.90 and 13,167,332.70

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Solution

The fourth proportional to 13,167,332.70, 18,446,862.90 and 13,167,332.70 is: 18,446,862.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,167,332.70 : 18,446,862.90 = 13,167,332.70 : x
  2. Step 2: Convert to fraction form
    13,167,332.70/18,446,862.90 = 13,167,332.70/x
  3. Step 3: Cross multiply
    13,167,332.70x = 18,446,862.90 × 13,167,332.70
  4. Step 4: Simplify right side
    13,167,332.70x = 242,895,981,075,586.78
  5. Step 5: Solve for x
    x = 242,895,981,075,586.78/13,167,332.70
  6. Step 6: Final answer
    x = 18,446,862.90

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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.