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Finding the Fourth Proportional to 17,924.64, 26,888.64 and 4,777.80

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Solution

The fourth proportional to 17,924.64, 26,888.64 and 4,777.80 is: 7,167.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,924.64 : 26,888.64 = 4,777.80 : x
  2. Step 2: Convert to fraction form
    17,924.64/26,888.64 = 4,777.80/x
  3. Step 3: Cross multiply
    17,924.64x = 26,888.64 × 4,777.80
  4. Step 4: Simplify right side
    17,924.64x = 128,468,544.19
  5. Step 5: Solve for x
    x = 128,468,544.19/17,924.64
  6. Step 6: Final answer
    x = 7,167.15

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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.