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Finding the Fourth Proportional to 11,852,642.90, 17,778,964.35 and 8,026,267.70

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Solution

The fourth proportional to 11,852,642.90, 17,778,964.35 and 8,026,267.70 is: 12,039,401.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,852,642.90 : 17,778,964.35 = 8,026,267.70 : x
  2. Step 2: Convert to fraction form
    11,852,642.90/17,778,964.35 = 8,026,267.70/x
  3. Step 3: Cross multiply
    11,852,642.90x = 17,778,964.35 × 8,026,267.70
  4. Step 4: Simplify right side
    11,852,642.90x = 142,698,727,301,856.50
  5. Step 5: Solve for x
    x = 142,698,727,301,856.50/11,852,642.90
  6. Step 6: Final answer
    x = 12,039,401.55

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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.