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Finding the Fourth Proportional to 25,683.62, 35,443.60 and 14,505.62

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Solution

The fourth proportional to 25,683.62, 35,443.60 and 14,505.62 is: 20,017.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,683.62 : 35,443.60 = 14,505.62 : x
  2. Step 2: Convert to fraction form
    25,683.62/35,443.60 = 14,505.62/x
  3. Step 3: Cross multiply
    25,683.62x = 35,443.60 × 14,505.62
  4. Step 4: Simplify right side
    25,683.62x = 514,131,393.03
  5. Step 5: Solve for x
    x = 514,131,393.03/25,683.62
  6. Step 6: Final answer
    x = 20,017.87

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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.