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Finding the Fourth Proportional to 6,654,464.40, 9,981,696.60 and 6,598,477.20

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Solution

The fourth proportional to 6,654,464.40, 9,981,696.60 and 6,598,477.20 is: 9,897,715.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,654,464.40 : 9,981,696.60 = 6,598,477.20 : x
  2. Step 2: Convert to fraction form
    6,654,464.40/9,981,696.60 = 6,598,477.20/x
  3. Step 3: Cross multiply
    6,654,464.40x = 9,981,696.60 × 6,598,477.20
  4. Step 4: Simplify right side
    6,654,464.40x = 65,863,997,432,417.52
  5. Step 5: Solve for x
    x = 65,863,997,432,417.52/6,654,464.40
  6. Step 6: Final answer
    x = 9,897,715.80

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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.