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Finding the Fourth Proportional to 18,443,772.90, 27,615,892.95 and 18,443,772.90

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Solution

The fourth proportional to 18,443,772.90, 27,615,892.95 and 18,443,772.90 is: 27,615,892.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443,772.90 : 27,615,892.95 = 18,443,772.90 : x
  2. Step 2: Convert to fraction form
    18,443,772.90/27,615,892.95 = 18,443,772.90/x
  3. Step 3: Cross multiply
    18,443,772.90x = 27,615,892.95 × 18,443,772.90
  4. Step 4: Simplify right side
    18,443,772.90x = 509,341,258,000,511
  5. Step 5: Solve for x
    x = 509,341,258,000,511/18,443,772.90
  6. Step 6: Final answer
    x = 27,615,892.95

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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.