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Finding the Fourth Proportional to 43,697.53, 65,529.60 and 15,612.31

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Solution

The fourth proportional to 43,697.53, 65,529.60 and 15,612.31 is: 23,412.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,697.53 : 65,529.60 = 15,612.31 : x
  2. Step 2: Convert to fraction form
    43,697.53/65,529.60 = 15,612.31/x
  3. Step 3: Cross multiply
    43,697.53x = 65,529.60 × 15,612.31
  4. Step 4: Simplify right side
    43,697.53x = 1,023,068,429.38
  5. Step 5: Solve for x
    x = 1,023,068,429.38/43,697.53
  6. Step 6: Final answer
    x = 23,412.50

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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.