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Finding the Fourth Proportional to 27,459.64, 37,894.80 and 18,963.52

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Solution

The fourth proportional to 27,459.64, 37,894.80 and 18,963.52 is: 26,170.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,459.64 : 37,894.80 = 18,963.52 : x
  2. Step 2: Convert to fraction form
    27,459.64/37,894.80 = 18,963.52/x
  3. Step 3: Cross multiply
    27,459.64x = 37,894.80 × 18,963.52
  4. Step 4: Simplify right side
    27,459.64x = 718,618,797.70
  5. Step 5: Solve for x
    x = 718,618,797.70/27,459.64
  6. Step 6: Final answer
    x = 26,170.00

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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.