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Finding the Fourth Proportional to 14,804.70, 20,430.46 and 8,517.08

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Solution

The fourth proportional to 14,804.70, 20,430.46 and 8,517.08 is: 11,753.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,804.70 : 20,430.46 = 8,517.08 : x
  2. Step 2: Convert to fraction form
    14,804.70/20,430.46 = 8,517.08/x
  3. Step 3: Cross multiply
    14,804.70x = 20,430.46 × 8,517.08
  4. Step 4: Simplify right side
    14,804.70x = 174,007,862.26
  5. Step 5: Solve for x
    x = 174,007,862.26/14,804.70
  6. Step 6: Final answer
    x = 11,753.56

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1.5x scale

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.