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Finding the Fourth Proportional to 5,700,663.72, 7,867,068.80 and 3,219,685.34

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Solution

The fourth proportional to 5,700,663.72, 7,867,068.80 and 3,219,685.34 is: 4,443,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,700,663.72 : 7,867,068.80 = 3,219,685.34 : x
  2. Step 2: Convert to fraction form
    5,700,663.72/7,867,068.80 = 3,219,685.34/x
  3. Step 3: Cross multiply
    5,700,663.72x = 7,867,068.80 × 3,219,685.34
  4. Step 4: Simplify right side
    5,700,663.72x = 25,329,486,028,697.62
  5. Step 5: Solve for x
    x = 25,329,486,028,697.62/5,700,663.72
  6. Step 6: Final answer
    x = 4,443,252.10

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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.