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Finding the Fourth Proportional to 57,830.76, 86,744.70 and 26,665.98

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Solution

The fourth proportional to 57,830.76, 86,744.70 and 26,665.98 is: 39,998.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,830.76 : 86,744.70 = 26,665.98 : x
  2. Step 2: Convert to fraction form
    57,830.76/86,744.70 = 26,665.98/x
  3. Step 3: Cross multiply
    57,830.76x = 86,744.70 × 26,665.98
  4. Step 4: Simplify right side
    57,830.76x = 2,313,132,435.31
  5. Step 5: Solve for x
    x = 2,313,132,435.31/57,830.76
  6. Step 6: Final answer
    x = 39,998.31

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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.