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Finding the Fourth Proportional to 11,268,978.40, 16,904,504.40 and 4,535,999.20

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Solution

The fourth proportional to 11,268,978.40, 16,904,504.40 and 4,535,999.20 is: 6,804,416.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,268,978.40 : 16,904,504.40 = 4,535,999.20 : x
  2. Step 2: Convert to fraction form
    11,268,978.40/16,904,504.40 = 4,535,999.20/x
  3. Step 3: Cross multiply
    11,268,978.40x = 16,904,504.40 × 4,535,999.20
  4. Step 4: Simplify right side
    11,268,978.40x = 76,678,818,434,796.47
  5. Step 5: Solve for x
    x = 76,678,818,434,796.47/11,268,978.40
  6. Step 6: Final answer
    x = 6,804,416.13

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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.