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Finding the Fourth Proportional to 6,392,964.81, 8,824,393.89 and 5,088,609.47

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Solution

The fourth proportional to 6,392,964.81, 8,824,393.89 and 5,088,609.47 is: 7,023,954.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,392,964.81 : 8,824,393.89 = 5,088,609.47 : x
  2. Step 2: Convert to fraction form
    6,392,964.81/8,824,393.89 = 5,088,609.47/x
  3. Step 3: Cross multiply
    6,392,964.81x = 8,824,393.89 × 5,088,609.47
  4. Step 4: Simplify right side
    6,392,964.81x = 44,903,894,271,542.17
  5. Step 5: Solve for x
    x = 44,903,894,271,542.17/6,392,964.81
  6. Step 6: Final answer
    x = 7,023,954.55

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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.