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Finding the Fourth Proportional to 9,355,859.40, 14,033,789.10 and 8,656,019.40

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Solution

The fourth proportional to 9,355,859.40, 14,033,789.10 and 8,656,019.40 is: 12,984,029.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,355,859.40 : 14,033,789.10 = 8,656,019.40 : x
  2. Step 2: Convert to fraction form
    9,355,859.40/14,033,789.10 = 8,656,019.40/x
  3. Step 3: Cross multiply
    9,355,859.40x = 14,033,789.10 × 8,656,019.40
  4. Step 4: Simplify right side
    9,355,859.40x = 121,476,750,705,108.55
  5. Step 5: Solve for x
    x = 121,476,750,705,108.55/9,355,859.40
  6. Step 6: Final answer
    x = 12,984,029.10

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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.