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Finding the Fourth Proportional to 17,816.64, 26,725.68 and 7,954.08

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Solution

The fourth proportional to 17,816.64, 26,725.68 and 7,954.08 is: 11,931.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,816.64 : 26,725.68 = 7,954.08 : x
  2. Step 2: Convert to fraction form
    17,816.64/26,725.68 = 7,954.08/x
  3. Step 3: Cross multiply
    17,816.64x = 26,725.68 × 7,954.08
  4. Step 4: Simplify right side
    17,816.64x = 212,578,196.77
  5. Step 5: Solve for x
    x = 212,578,196.77/17,816.64
  6. Step 6: Final answer
    x = 11,931.44

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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.