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Finding the Fourth Proportional to 35,482.52, 48,963.64 and 20,364.54

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Solution

The fourth proportional to 35,482.52, 48,963.64 and 20,364.54 is: 28,101.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,482.52 : 48,963.64 = 20,364.54 : x
  2. Step 2: Convert to fraction form
    35,482.52/48,963.64 = 20,364.54/x
  3. Step 3: Cross multiply
    35,482.52x = 48,963.64 × 20,364.54
  4. Step 4: Simplify right side
    35,482.52x = 997,121,751.71
  5. Step 5: Solve for x
    x = 997,121,751.71/35,482.52
  6. Step 6: Final answer
    x = 28,101.78

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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.