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Finding the Fourth Proportional to 19,599.96, 27,037.59 and 12,417.21

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Solution

The fourth proportional to 19,599.96, 27,037.59 and 12,417.21 is: 17,129.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,599.96 : 27,037.59 = 12,417.21 : x
  2. Step 2: Convert to fraction form
    19,599.96/27,037.59 = 12,417.21/x
  3. Step 3: Cross multiply
    19,599.96x = 27,037.59 × 12,417.21
  4. Step 4: Simplify right side
    19,599.96x = 335,731,432.92
  5. Step 5: Solve for x
    x = 335,731,432.92/19,599.96
  6. Step 6: Final answer
    x = 17,129.19

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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.