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Finding the Fourth Proportional to 27,305, 37,680.44 and 15,368.32

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Solution

The fourth proportional to 27,305, 37,680.44 and 15,368.32 is: 21,208.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,305 : 37,680.44 = 15,368.32 : x
  2. Step 2: Convert to fraction form
    27,305/37,680.44 = 15,368.32/x
  3. Step 3: Cross multiply
    27,305x = 37,680.44 × 15,368.32
  4. Step 4: Simplify right side
    27,305x = 579,085,059.66
  5. Step 5: Solve for x
    x = 579,085,059.66/27,305
  6. Step 6: Final answer
    x = 21,208.02

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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.