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Finding the Fourth Proportional to 32,420.70, 48,631.05 and 16,868.70

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Solution

The fourth proportional to 32,420.70, 48,631.05 and 16,868.70 is: 25,303.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,420.70 : 48,631.05 = 16,868.70 : x
  2. Step 2: Convert to fraction form
    32,420.70/48,631.05 = 16,868.70/x
  3. Step 3: Cross multiply
    32,420.70x = 48,631.05 × 16,868.70
  4. Step 4: Simplify right side
    32,420.70x = 820,342,593.14
  5. Step 5: Solve for x
    x = 820,342,593.14/32,420.70
  6. Step 6: Final answer
    x = 25,303.05

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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.