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Finding the Fourth Proportional to 8,675,548.80, 11,961,615.04 and 7,039,322.88

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Solution

The fourth proportional to 8,675,548.80, 11,961,615.04 and 7,039,322.88 is: 9,705,630.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675,548.80 : 11,961,615.04 = 7,039,322.88 : x
  2. Step 2: Convert to fraction form
    8,675,548.80/11,961,615.04 = 7,039,322.88/x
  3. Step 3: Cross multiply
    8,675,548.80x = 11,961,615.04 × 7,039,322.88
  4. Step 4: Simplify right side
    8,675,548.80x = 84,201,670,432,824.11
  5. Step 5: Solve for x
    x = 84,201,670,432,824.11/8,675,548.80
  6. Step 6: Final answer
    x = 9,705,630.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.