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Finding the Fourth Proportional to 29,988.96, 41,402.04 and 19,931.04

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Solution

The fourth proportional to 29,988.96, 41,402.04 and 19,931.04 is: 27,516.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,988.96 : 41,402.04 = 19,931.04 : x
  2. Step 2: Convert to fraction form
    29,988.96/41,402.04 = 19,931.04/x
  3. Step 3: Cross multiply
    29,988.96x = 41,402.04 × 19,931.04
  4. Step 4: Simplify right side
    29,988.96x = 825,185,715.32
  5. Step 5: Solve for x
    x = 825,185,715.32/29,988.96
  6. Step 6: Final answer
    x = 27,516.32

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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.