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Finding the Fourth Proportional to 57,276.80, 85,916.64 and 22,224.32

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Solution

The fourth proportional to 57,276.80, 85,916.64 and 22,224.32 is: 33,337.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,276.80 : 85,916.64 = 22,224.32 : x
  2. Step 2: Convert to fraction form
    57,276.80/85,916.64 = 22,224.32/x
  3. Step 3: Cross multiply
    57,276.80x = 85,916.64 × 22,224.32
  4. Step 4: Simplify right side
    57,276.80x = 1,909,438,900.68
  5. Step 5: Solve for x
    x = 1,909,438,900.68/57,276.80
  6. Step 6: Final answer
    x = 33,337.04

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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.