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Finding the Fourth Proportional to 39,626.40, 59,439.60 and 25,629.60

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Solution

The fourth proportional to 39,626.40, 59,439.60 and 25,629.60 is: 38,444.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,626.40 : 59,439.60 = 25,629.60 : x
  2. Step 2: Convert to fraction form
    39,626.40/59,439.60 = 25,629.60/x
  3. Step 3: Cross multiply
    39,626.40x = 59,439.60 × 25,629.60
  4. Step 4: Simplify right side
    39,626.40x = 1,523,413,172.16
  5. Step 5: Solve for x
    x = 1,523,413,172.16/39,626.40
  6. Step 6: Final answer
    x = 38,444.40

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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.