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Finding the Fourth Proportional to 27,245.92, 37,602.73 and 15,309

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Solution

The fourth proportional to 27,245.92, 37,602.73 and 15,309 is: 21,128.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,245.92 : 37,602.73 = 15,309 : x
  2. Step 2: Convert to fraction form
    27,245.92/37,602.73 = 15,309/x
  3. Step 3: Cross multiply
    27,245.92x = 37,602.73 × 15,309
  4. Step 4: Simplify right side
    27,245.92x = 575,660,212.71
  5. Step 5: Solve for x
    x = 575,660,212.71/27,245.92
  6. Step 6: Final answer
    x = 21,128.31

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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.