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Finding the Fourth Proportional to 57,276.40, 85,922.70 and 17,829.40

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Solution

The fourth proportional to 57,276.40, 85,922.70 and 17,829.40 is: 26,746.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,276.40 : 85,922.70 = 17,829.40 : x
  2. Step 2: Convert to fraction form
    57,276.40/85,922.70 = 17,829.40/x
  3. Step 3: Cross multiply
    57,276.40x = 85,922.70 × 17,829.40
  4. Step 4: Simplify right side
    57,276.40x = 1,531,950,187.38
  5. Step 5: Solve for x
    x = 1,531,950,187.38/57,276.40
  6. Step 6: Final answer
    x = 26,746.62

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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.