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Finding the Fourth Proportional to 7,295,748.87, 10,068,173.55 and 3,988,048.11

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Solution

The fourth proportional to 7,295,748.87, 10,068,173.55 and 3,988,048.11 is: 5,503,528.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,295,748.87 : 10,068,173.55 = 3,988,048.11 : x
  2. Step 2: Convert to fraction form
    7,295,748.87/10,068,173.55 = 3,988,048.11/x
  3. Step 3: Cross multiply
    7,295,748.87x = 10,068,173.55 × 3,988,048.11
  4. Step 4: Simplify right side
    7,295,748.87x = 40,152,360,497,229.49
  5. Step 5: Solve for x
    x = 40,152,360,497,229.49/7,295,748.87
  6. Step 6: Final answer
    x = 5,503,528.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.