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Finding the Fourth Proportional to 35,246.76, 48,636.02 and 20,140.40

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Solution

The fourth proportional to 35,246.76, 48,636.02 and 20,140.40 is: 27,791.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,246.76 : 48,636.02 = 20,140.40 : x
  2. Step 2: Convert to fraction form
    35,246.76/48,636.02 = 20,140.40/x
  3. Step 3: Cross multiply
    35,246.76x = 48,636.02 × 20,140.40
  4. Step 4: Simplify right side
    35,246.76x = 979,548,897.21
  5. Step 5: Solve for x
    x = 979,548,897.21/35,246.76
  6. Step 6: Final answer
    x = 27,791.18

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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.