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Finding the Fourth Proportional to 35,289.01, 48,698.88 and 20,951.71

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Solution

The fourth proportional to 35,289.01, 48,698.88 and 20,951.71 is: 28,913.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,289.01 : 48,698.88 = 20,951.71 : x
  2. Step 2: Convert to fraction form
    35,289.01/48,698.88 = 20,951.71/x
  3. Step 3: Cross multiply
    35,289.01x = 48,698.88 × 20,951.71
  4. Step 4: Simplify right side
    35,289.01x = 1,020,324,811.08
  5. Step 5: Solve for x
    x = 1,020,324,811.08/35,289.01
  6. Step 6: Final answer
    x = 28,913.39

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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.