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Finding the Fourth Proportional to 6,464,687.66, 8,921,266.13 and 3,711,552.64

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Solution

The fourth proportional to 6,464,687.66, 8,921,266.13 and 3,711,552.64 is: 5,121,941.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,464,687.66 : 8,921,266.13 = 3,711,552.64 : x
  2. Step 2: Convert to fraction form
    6,464,687.66/8,921,266.13 = 3,711,552.64/x
  3. Step 3: Cross multiply
    6,464,687.66x = 8,921,266.13 × 3,711,552.64
  4. Step 4: Simplify right side
    6,464,687.66x = 33,111,748,856,944.09
  5. Step 5: Solve for x
    x = 33,111,748,856,944.09/6,464,687.66
  6. Step 6: Final answer
    x = 5,121,941.01

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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.