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Finding the Fourth Proportional to 40,581,689.88, 56,006,274.98 and 22,250,518.32

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Solution

The fourth proportional to 40,581,689.88, 56,006,274.98 and 22,250,518.32 is: 30,707,657.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,581,689.88 : 56,006,274.98 = 22,250,518.32 : x
  2. Step 2: Convert to fraction form
    40,581,689.88/56,006,274.98 = 22,250,518.32/x
  3. Step 3: Cross multiply
    40,581,689.88x = 56,006,274.98 × 22,250,518.32
  4. Step 4: Simplify right side
    40,581,689.88x = 1,246,168,647,477,447.50
  5. Step 5: Solve for x
    x = 1,246,168,647,477,447.50/40,581,689.88
  6. Step 6: Final answer
    x = 30,707,657.84

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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.