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Finding the Fourth Proportional to 57,798.60, 86,697.90 and 35,539.80

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Solution

The fourth proportional to 57,798.60, 86,697.90 and 35,539.80 is: 53,309.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,798.60 : 86,697.90 = 35,539.80 : x
  2. Step 2: Convert to fraction form
    57,798.60/86,697.90 = 35,539.80/x
  3. Step 3: Cross multiply
    57,798.60x = 86,697.90 × 35,539.80
  4. Step 4: Simplify right side
    57,798.60x = 3,081,226,026.42
  5. Step 5: Solve for x
    x = 3,081,226,026.42/57,798.60
  6. Step 6: Final answer
    x = 53,309.70

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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.