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Finding the Fourth Proportional to 17,015.76, 25,528.80 and 8,701.60

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Solution

The fourth proportional to 17,015.76, 25,528.80 and 8,701.60 is: 13,055.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,015.76 : 25,528.80 = 8,701.60 : x
  2. Step 2: Convert to fraction form
    17,015.76/25,528.80 = 8,701.60/x
  3. Step 3: Cross multiply
    17,015.76x = 25,528.80 × 8,701.60
  4. Step 4: Simplify right side
    17,015.76x = 222,141,406.08
  5. Step 5: Solve for x
    x = 222,141,406.08/17,015.76
  6. Step 6: Final answer
    x = 13,055.04

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1.5x scale

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.