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Finding the Fourth Proportional to 48,771.70, 73,048.20 and 42,210.70

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Solution

The fourth proportional to 48,771.70, 73,048.20 and 42,210.70 is: 63,221.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,771.70 : 73,048.20 = 42,210.70 : x
  2. Step 2: Convert to fraction form
    48,771.70/73,048.20 = 42,210.70/x
  3. Step 3: Cross multiply
    48,771.70x = 73,048.20 × 42,210.70
  4. Step 4: Simplify right side
    48,771.70x = 3,083,415,655.74
  5. Step 5: Solve for x
    x = 3,083,415,655.74/48,771.70
  6. Step 6: Final answer
    x = 63,221.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.