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Finding the Fourth Proportional to 7,762,652.20, 11,643,978.30 and 4,403,420.20

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Solution

The fourth proportional to 7,762,652.20, 11,643,978.30 and 4,403,420.20 is: 6,605,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,762,652.20 : 11,643,978.30 = 4,403,420.20 : x
  2. Step 2: Convert to fraction form
    7,762,652.20/11,643,978.30 = 4,403,420.20/x
  3. Step 3: Cross multiply
    7,762,652.20x = 11,643,978.30 × 4,403,420.20
  4. Step 4: Simplify right side
    7,762,652.20x = 51,273,329,254,581.66
  5. Step 5: Solve for x
    x = 51,273,329,254,581.66/7,762,652.20
  6. Step 6: Final answer
    x = 6,605,130.30

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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.