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Finding the Fourth Proportional to 56,638.40, 84,957.60 and 17,193.60

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Solution

The fourth proportional to 56,638.40, 84,957.60 and 17,193.60 is: 25,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,638.40 : 84,957.60 = 17,193.60 : x
  2. Step 2: Convert to fraction form
    56,638.40/84,957.60 = 17,193.60/x
  3. Step 3: Cross multiply
    56,638.40x = 84,957.60 × 17,193.60
  4. Step 4: Simplify right side
    56,638.40x = 1,460,726,991.36
  5. Step 5: Solve for x
    x = 1,460,726,991.36/56,638.40
  6. Step 6: Final answer
    x = 25,790.40

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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.