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Finding the Fourth Proportional to 19,602.09, 27,062.10 and 12,907.17

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Solution

The fourth proportional to 19,602.09, 27,062.10 and 12,907.17 is: 17,819.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,602.09 : 27,062.10 = 12,907.17 : x
  2. Step 2: Convert to fraction form
    19,602.09/27,062.10 = 12,907.17/x
  3. Step 3: Cross multiply
    19,602.09x = 27,062.10 × 12,907.17
  4. Step 4: Simplify right side
    19,602.09x = 349,295,125.26
  5. Step 5: Solve for x
    x = 349,295,125.26/19,602.09
  6. Step 6: Final answer
    x = 17,819.28

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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.