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Finding the Fourth Proportional to 19,599.58, 27,040.76 and 12,884.68

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Solution

The fourth proportional to 19,599.58, 27,040.76 and 12,884.68 is: 17,776.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,599.58 : 27,040.76 = 12,884.68 : x
  2. Step 2: Convert to fraction form
    19,599.58/27,040.76 = 12,884.68/x
  3. Step 3: Cross multiply
    19,599.58x = 27,040.76 × 12,884.68
  4. Step 4: Simplify right side
    19,599.58x = 348,411,539.56
  5. Step 5: Solve for x
    x = 348,411,539.56/19,599.58
  6. Step 6: Final answer
    x = 17,776.48

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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.