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Finding the Fourth Proportional to 18,693,612.10, 26,208,848.30 and 18,693,612.10

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Solution

The fourth proportional to 18,693,612.10, 26,208,848.30 and 18,693,612.10 is: 26,208,848.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693,612.10 : 26,208,848.30 = 18,693,612.10 : x
  2. Step 2: Convert to fraction form
    18,693,612.10/26,208,848.30 = 18,693,612.10/x
  3. Step 3: Cross multiply
    18,693,612.10x = 26,208,848.30 × 18,693,612.10
  4. Step 4: Simplify right side
    18,693,612.10x = 489,938,043,707,944.50
  5. Step 5: Solve for x
    x = 489,938,043,707,944.50/18,693,612.10
  6. Step 6: Final answer
    x = 26,208,848.30

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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.