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Finding the Fourth Proportional to 6,611,117.94, 9,895,418.46 and 3,411,886.86

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Solution

The fourth proportional to 6,611,117.94, 9,895,418.46 and 3,411,886.86 is: 5,106,859.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,611,117.94 : 9,895,418.46 = 3,411,886.86 : x
  2. Step 2: Convert to fraction form
    6,611,117.94/9,895,418.46 = 3,411,886.86/x
  3. Step 3: Cross multiply
    6,611,117.94x = 9,895,418.46 × 3,411,886.86
  4. Step 4: Simplify right side
    6,611,117.94x = 33,762,048,217,875.44
  5. Step 5: Solve for x
    x = 33,762,048,217,875.44/6,611,117.94
  6. Step 6: Final answer
    x = 5,106,859.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.