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Finding the Fourth Proportional to 8,859,617.40, 13,270,763.70 and 8,859,617.40

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Solution

The fourth proportional to 8,859,617.40, 13,270,763.70 and 8,859,617.40 is: 13,270,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859,617.40 : 13,270,763.70 = 8,859,617.40 : x
  2. Step 2: Convert to fraction form
    8,859,617.40/13,270,763.70 = 8,859,617.40/x
  3. Step 3: Cross multiply
    8,859,617.40x = 13,270,763.70 × 8,859,617.40
  4. Step 4: Simplify right side
    8,859,617.40x = 117,573,888,987,808.38
  5. Step 5: Solve for x
    x = 117,573,888,987,808.38/8,859,617.40
  6. Step 6: Final answer
    x = 13,270,763.70

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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.