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Finding the Fourth Proportional to 45,886.20, 68,699.70 and 44,590.20

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Solution

The fourth proportional to 45,886.20, 68,699.70 and 44,590.20 is: 66,759.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,886.20 : 68,699.70 = 44,590.20 : x
  2. Step 2: Convert to fraction form
    45,886.20/68,699.70 = 44,590.20/x
  3. Step 3: Cross multiply
    45,886.20x = 68,699.70 × 44,590.20
  4. Step 4: Simplify right side
    45,886.20x = 3,063,333,362.94
  5. Step 5: Solve for x
    x = 3,063,333,362.94/45,886.20
  6. Step 6: Final answer
    x = 66,759.36

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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.