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Finding the Fourth Proportional to 7,668,755.40, 11,503,133.10 and 3,881,746.20

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Solution

The fourth proportional to 7,668,755.40, 11,503,133.10 and 3,881,746.20 is: 5,822,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,668,755.40 : 11,503,133.10 = 3,881,746.20 : x
  2. Step 2: Convert to fraction form
    7,668,755.40/11,503,133.10 = 3,881,746.20/x
  3. Step 3: Cross multiply
    7,668,755.40x = 11,503,133.10 × 3,881,746.20
  4. Step 4: Simplify right side
    7,668,755.40x = 44,652,243,199,019.22
  5. Step 5: Solve for x
    x = 44,652,243,199,019.22/7,668,755.40
  6. Step 6: Final answer
    x = 5,822,619.30

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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.