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Finding the Fourth Proportional to 9,295,989.80, 13,971,978.30 and 8,064,271.40

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Solution

The fourth proportional to 9,295,989.80, 13,971,978.30 and 8,064,271.40 is: 12,120,691.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,295,989.80 : 13,971,978.30 = 8,064,271.40 : x
  2. Step 2: Convert to fraction form
    9,295,989.80/13,971,978.30 = 8,064,271.40/x
  3. Step 3: Cross multiply
    9,295,989.80x = 13,971,978.30 × 8,064,271.40
  4. Step 4: Simplify right side
    9,295,989.80x = 112,673,825,006,110.62
  5. Step 5: Solve for x
    x = 112,673,825,006,110.62/9,295,989.80
  6. Step 6: Final answer
    x = 12,120,691.55

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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.