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Finding the Fourth Proportional to 19,903.52, 27,465.08 and 10,951.40

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Solution

The fourth proportional to 19,903.52, 27,465.08 and 10,951.40 is: 15,111.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,903.52 : 27,465.08 = 10,951.40 : x
  2. Step 2: Convert to fraction form
    19,903.52/27,465.08 = 10,951.40/x
  3. Step 3: Cross multiply
    19,903.52x = 27,465.08 × 10,951.40
  4. Step 4: Simplify right side
    19,903.52x = 300,781,091.02
  5. Step 5: Solve for x
    x = 300,781,091.02/19,903.52
  6. Step 6: Final answer
    x = 15,111.95

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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.