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Finding the Fourth Proportional to 27,347.49, 37,739.08 and 15,411.99

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Solution

The fourth proportional to 27,347.49, 37,739.08 and 15,411.99 is: 21,268.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,347.49 : 37,739.08 = 15,411.99 : x
  2. Step 2: Convert to fraction form
    27,347.49/37,739.08 = 15,411.99/x
  3. Step 3: Cross multiply
    27,347.49x = 37,739.08 × 15,411.99
  4. Step 4: Simplify right side
    27,347.49x = 581,634,323.57
  5. Step 5: Solve for x
    x = 581,634,323.57/27,347.49
  6. Step 6: Final answer
    x = 21,268.29

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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.