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Finding the Fourth Proportional to 8,970,612.30, 13,455,918.45 and 8,970,612.30

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Solution

The fourth proportional to 8,970,612.30, 13,455,918.45 and 8,970,612.30 is: 13,455,918.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970,612.30 : 13,455,918.45 = 8,970,612.30 : x
  2. Step 2: Convert to fraction form
    8,970,612.30/13,455,918.45 = 8,970,612.30/x
  3. Step 3: Cross multiply
    8,970,612.30x = 13,455,918.45 × 8,970,612.30
  4. Step 4: Simplify right side
    8,970,612.30x = 120,707,827,555,366.94
  5. Step 5: Solve for x
    x = 120,707,827,555,366.94/8,970,612.30
  6. Step 6: Final answer
    x = 13,455,918.45

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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.