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Finding the Fourth Proportional to 6,548,874.77, 8,971,990.46 and 6,303,424.55

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Solution

The fourth proportional to 6,548,874.77, 8,971,990.46 and 6,303,424.55 is: 8,635,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,548,874.77 : 8,971,990.46 = 6,303,424.55 : x
  2. Step 2: Convert to fraction form
    6,548,874.77/8,971,990.46 = 6,303,424.55/x
  3. Step 3: Cross multiply
    6,548,874.77x = 8,971,990.46 × 6,303,424.55
  4. Step 4: Simplify right side
    6,548,874.77x = 56,554,264,851,552.72
  5. Step 5: Solve for x
    x = 56,554,264,851,552.72/6,548,874.77
  6. Step 6: Final answer
    x = 8,635,722.45

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.