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Finding the Fourth Proportional to 57,666.60, 86,483.70 and 18,235.80

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Solution

The fourth proportional to 57,666.60, 86,483.70 and 18,235.80 is: 27,348.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,666.60 : 86,483.70 = 18,235.80 : x
  2. Step 2: Convert to fraction form
    57,666.60/86,483.70 = 18,235.80/x
  3. Step 3: Cross multiply
    57,666.60x = 86,483.70 × 18,235.80
  4. Step 4: Simplify right side
    57,666.60x = 1,577,099,456.46
  5. Step 5: Solve for x
    x = 1,577,099,456.46/57,666.60
  6. Step 6: Final answer
    x = 27,348.58

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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.