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Finding the Fourth Proportional to 8,946,969.64, 12,347,167.65 and 5,079,850.63

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Solution

The fourth proportional to 8,946,969.64, 12,347,167.65 and 5,079,850.63 is: 7,010,392.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,946,969.64 : 12,347,167.65 = 5,079,850.63 : x
  2. Step 2: Convert to fraction form
    8,946,969.64/12,347,167.65 = 5,079,850.63/x
  3. Step 3: Cross multiply
    8,946,969.64x = 12,347,167.65 × 5,079,850.63
  4. Step 4: Simplify right side
    8,946,969.64x = 62,721,767,303,832.28
  5. Step 5: Solve for x
    x = 62,721,767,303,832.28/8,946,969.64
  6. Step 6: Final answer
    x = 7,010,392.33

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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.