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Finding the Fourth Proportional to 56,602.80, 78,116.20 and 33,942.65

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Solution

The fourth proportional to 56,602.80, 78,116.20 and 33,942.65 is: 46,843.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,602.80 : 78,116.20 = 33,942.65 : x
  2. Step 2: Convert to fraction form
    56,602.80/78,116.20 = 33,942.65/x
  3. Step 3: Cross multiply
    56,602.80x = 78,116.20 × 33,942.65
  4. Step 4: Simplify right side
    56,602.80x = 2,651,470,360.49
  5. Step 5: Solve for x
    x = 2,651,470,360.49/56,602.80
  6. Step 6: Final answer
    x = 46,843.45

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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.