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Finding the Fourth Proportional to 27,509.64, 37,963.60 and 15,572.71

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Solution

The fourth proportional to 27,509.64, 37,963.60 and 15,572.71 is: 21,490.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,509.64 : 37,963.60 = 15,572.71 : x
  2. Step 2: Convert to fraction form
    27,509.64/37,963.60 = 15,572.71/x
  3. Step 3: Cross multiply
    27,509.64x = 37,963.60 × 15,572.71
  4. Step 4: Simplify right side
    27,509.64x = 591,196,229.48
  5. Step 5: Solve for x
    x = 591,196,229.48/27,509.64
  6. Step 6: Final answer
    x = 21,490.51

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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.