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Finding the Fourth Proportional to 6,616,459.80, 9,281,939.40 and 6,616,459.80

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Solution

The fourth proportional to 6,616,459.80, 9,281,939.40 and 6,616,459.80 is: 9,281,939.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616,459.80 : 9,281,939.40 = 6,616,459.80 : x
  2. Step 2: Convert to fraction form
    6,616,459.80/9,281,939.40 = 6,616,459.80/x
  3. Step 3: Cross multiply
    6,616,459.80x = 9,281,939.40 × 6,616,459.80
  4. Step 4: Simplify right side
    6,616,459.80x = 61,413,578,906,136.12
  5. Step 5: Solve for x
    x = 61,413,578,906,136.12/6,616,459.80
  6. Step 6: Final answer
    x = 9,281,939.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.