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Finding the Fourth Proportional to 9,920,774.40, 14,865,415.20 and 6,551,044.80

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Solution

The fourth proportional to 9,920,774.40, 14,865,415.20 and 6,551,044.80 is: 9,816,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920,774.40 : 14,865,415.20 = 6,551,044.80 : x
  2. Step 2: Convert to fraction form
    9,920,774.40/14,865,415.20 = 6,551,044.80/x
  3. Step 3: Cross multiply
    9,920,774.40x = 14,865,415.20 × 6,551,044.80
  4. Step 4: Simplify right side
    9,920,774.40x = 97,384,000,945,800.95
  5. Step 5: Solve for x
    x = 97,384,000,945,800.95/9,920,774.40
  6. Step 6: Final answer
    x = 9,816,169.28

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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.