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Finding the Fourth Proportional to 32,940.96, 45,455.64 and 19,509.84

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Solution

The fourth proportional to 32,940.96, 45,455.64 and 19,509.84 is: 26,921.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,940.96 : 45,455.64 = 19,509.84 : x
  2. Step 2: Convert to fraction form
    32,940.96/45,455.64 = 19,509.84/x
  3. Step 3: Cross multiply
    32,940.96x = 45,455.64 × 19,509.84
  4. Step 4: Simplify right side
    32,940.96x = 886,832,263.50
  5. Step 5: Solve for x
    x = 886,832,263.50/32,940.96
  6. Step 6: Final answer
    x = 26,921.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.