Home / 30,817.53-42,528.19-16,670.37

Finding the Fourth Proportional to 30,817.53, 42,528.19 and 16,670.37

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Solution

The fourth proportional to 30,817.53, 42,528.19 and 16,670.37 is: 23,005.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,817.53 : 42,528.19 = 16,670.37 : x
  2. Step 2: Convert to fraction form
    30,817.53/42,528.19 = 16,670.37/x
  3. Step 3: Cross multiply
    30,817.53x = 42,528.19 × 16,670.37
  4. Step 4: Simplify right side
    30,817.53x = 708,960,662.73
  5. Step 5: Solve for x
    x = 708,960,662.73/30,817.53
  6. Step 6: Final answer
    x = 23,005.11

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Half scale
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Double scale
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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.