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Finding the Fourth Proportional to 6,996,472.40, 9,655,000.74 and 3,898,927.59

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Solution

The fourth proportional to 6,996,472.40, 9,655,000.74 and 3,898,927.59 is: 5,380,446.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,996,472.40 : 9,655,000.74 = 3,898,927.59 : x
  2. Step 2: Convert to fraction form
    6,996,472.40/9,655,000.74 = 3,898,927.59/x
  3. Step 3: Cross multiply
    6,996,472.40x = 9,655,000.74 × 3,898,927.59
  4. Step 4: Simplify right side
    6,996,472.40x = 37,644,148,766,656.41
  5. Step 5: Solve for x
    x = 37,644,148,766,656.41/6,996,472.40
  6. Step 6: Final answer
    x = 5,380,446.98

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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.