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Finding the Fourth Proportional to 8,808,666.30, 13,212,999.45 and 8,808,666.30

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Solution

The fourth proportional to 8,808,666.30, 13,212,999.45 and 8,808,666.30 is: 13,212,999.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,808,666.30 : 13,212,999.45 = 8,808,666.30 : x
  2. Step 2: Convert to fraction form
    8,808,666.30/13,212,999.45 = 8,808,666.30/x
  3. Step 3: Cross multiply
    8,808,666.30x = 13,212,999.45 × 8,808,666.30
  4. Step 4: Simplify right side
    8,808,666.30x = 116,388,902,977,133.53
  5. Step 5: Solve for x
    x = 116,388,902,977,133.53/8,808,666.30
  6. Step 6: Final answer
    x = 13,212,999.45

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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.