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Finding the Fourth Proportional to 27,114.32, 37,405.32 and 15,928.40

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Solution

The fourth proportional to 27,114.32, 37,405.32 and 15,928.40 is: 21,973.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,114.32 : 37,405.32 = 15,928.40 : x
  2. Step 2: Convert to fraction form
    27,114.32/37,405.32 = 15,928.40/x
  3. Step 3: Cross multiply
    27,114.32x = 37,405.32 × 15,928.40
  4. Step 4: Simplify right side
    27,114.32x = 595,806,899.09
  5. Step 5: Solve for x
    x = 595,806,899.09/27,114.32
  6. Step 6: Final answer
    x = 21,973.88

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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.