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Finding the Fourth Proportional to 8,957.94, 13,437.21 and 3,114.60

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Solution

The fourth proportional to 8,957.94, 13,437.21 and 3,114.60 is: 4,672.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,957.94 : 13,437.21 = 3,114.60 : x
  2. Step 2: Convert to fraction form
    8,957.94/13,437.21 = 3,114.60/x
  3. Step 3: Cross multiply
    8,957.94x = 13,437.21 × 3,114.60
  4. Step 4: Simplify right side
    8,957.94x = 41,851,534.27
  5. Step 5: Solve for x
    x = 41,851,534.27/8,957.94
  6. Step 6: Final answer
    x = 4,672.00

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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.