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Finding the Fourth Proportional to 8,771.16, 12,100.14 and 5,043

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Solution

The fourth proportional to 8,771.16, 12,100.14 and 5,043 is: 6,957.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.16 : 12,100.14 = 5,043 : x
  2. Step 2: Convert to fraction form
    8,771.16/12,100.14 = 5,043/x
  3. Step 3: Cross multiply
    8,771.16x = 12,100.14 × 5,043
  4. Step 4: Simplify right side
    8,771.16x = 61,021,006.02
  5. Step 5: Solve for x
    x = 61,021,006.02/8,771.16
  6. Step 6: Final answer
    x = 6,957.01

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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.