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Finding the Fourth Proportional to 26,886.49, 37,106.31 and 15,402.49

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Solution

The fourth proportional to 26,886.49, 37,106.31 and 15,402.49 is: 21,257.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,886.49 : 37,106.31 = 15,402.49 : x
  2. Step 2: Convert to fraction form
    26,886.49/37,106.31 = 15,402.49/x
  3. Step 3: Cross multiply
    26,886.49x = 37,106.31 × 15,402.49
  4. Step 4: Simplify right side
    26,886.49x = 571,529,568.71
  5. Step 5: Solve for x
    x = 571,529,568.71/26,886.49
  6. Step 6: Final answer
    x = 21,257.13

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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.