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Finding the Fourth Proportional to 6,213,689.92, 8,573,159.44 and 4,007,619.28

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Solution

The fourth proportional to 6,213,689.92, 8,573,159.44 and 4,007,619.28 is: 5,529,397.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,213,689.92 : 8,573,159.44 = 4,007,619.28 : x
  2. Step 2: Convert to fraction form
    6,213,689.92/8,573,159.44 = 4,007,619.28/x
  3. Step 3: Cross multiply
    6,213,689.92x = 8,573,159.44 × 4,007,619.28
  4. Step 4: Simplify right side
    6,213,689.92x = 34,357,959,062,258
  5. Step 5: Solve for x
    x = 34,357,959,062,258/6,213,689.92
  6. Step 6: Final answer
    x = 5,529,397.11

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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.