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Finding the Fourth Proportional to 14,858.84, 20,504.34 and 8,890.46

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Solution

The fourth proportional to 14,858.84, 20,504.34 and 8,890.46 is: 12,268.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,858.84 : 20,504.34 = 8,890.46 : x
  2. Step 2: Convert to fraction form
    14,858.84/20,504.34 = 8,890.46/x
  3. Step 3: Cross multiply
    14,858.84x = 20,504.34 × 8,890.46
  4. Step 4: Simplify right side
    14,858.84x = 182,292,988.97
  5. Step 5: Solve for x
    x = 182,292,988.97/14,858.84
  6. Step 6: Final answer
    x = 12,268.32

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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.