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Finding the Fourth Proportional to 51,866.90, 77,800.35 and 50,714.90

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Solution

The fourth proportional to 51,866.90, 77,800.35 and 50,714.90 is: 76,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,866.90 : 77,800.35 = 50,714.90 : x
  2. Step 2: Convert to fraction form
    51,866.90/77,800.35 = 50,714.90/x
  3. Step 3: Cross multiply
    51,866.90x = 77,800.35 × 50,714.90
  4. Step 4: Simplify right side
    51,866.90x = 3,945,636,970.22
  5. Step 5: Solve for x
    x = 3,945,636,970.22/51,866.90
  6. Step 6: Final answer
    x = 76,072.35

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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.