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Finding the Fourth Proportional to 9,473,649.80, 14,210,474.70 and 8,839,128.20

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Solution

The fourth proportional to 9,473,649.80, 14,210,474.70 and 8,839,128.20 is: 13,258,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,473,649.80 : 14,210,474.70 = 8,839,128.20 : x
  2. Step 2: Convert to fraction form
    9,473,649.80/14,210,474.70 = 8,839,128.20/x
  3. Step 3: Cross multiply
    9,473,649.80x = 14,210,474.70 × 8,839,128.20
  4. Step 4: Simplify right side
    9,473,649.80x = 125,608,207,656,156.52
  5. Step 5: Solve for x
    x = 125,608,207,656,156.52/9,473,649.80
  6. Step 6: Final answer
    x = 13,258,692.30

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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.