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Finding the Fourth Proportional to 5,377,763.20, 7,534,467.20 and 5,377,763.20

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Solution

The fourth proportional to 5,377,763.20, 7,534,467.20 and 5,377,763.20 is: 7,534,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377,763.20 : 7,534,467.20 = 5,377,763.20 : x
  2. Step 2: Convert to fraction form
    5,377,763.20/7,534,467.20 = 5,377,763.20/x
  3. Step 3: Cross multiply
    5,377,763.20x = 7,534,467.20 × 5,377,763.20
  4. Step 4: Simplify right side
    5,377,763.20x = 40,518,580,439,767.04
  5. Step 5: Solve for x
    x = 40,518,580,439,767.04/5,377,763.20
  6. Step 6: Final answer
    x = 7,534,467.20

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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.