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Finding the Fourth Proportional to 4,989,620.20, 7,484,430.30 and 4,989,620.20

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Solution

The fourth proportional to 4,989,620.20, 7,484,430.30 and 4,989,620.20 is: 7,484,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,989,620.20 : 7,484,430.30 = 4,989,620.20 : x
  2. Step 2: Convert to fraction form
    4,989,620.20/7,484,430.30 = 4,989,620.20/x
  3. Step 3: Cross multiply
    4,989,620.20x = 7,484,430.30 × 4,989,620.20
  4. Step 4: Simplify right side
    4,989,620.20x = 37,344,464,610,372.06
  5. Step 5: Solve for x
    x = 37,344,464,610,372.06/4,989,620.20
  6. Step 6: Final answer
    x = 7,484,430.30

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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.