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Finding the Fourth Proportional to 23,438.94, 35,138.97 and 8,645.10

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Solution

The fourth proportional to 23,438.94, 35,138.97 and 8,645.10 is: 12,960.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,438.94 : 35,138.97 = 8,645.10 : x
  2. Step 2: Convert to fraction form
    23,438.94/35,138.97 = 8,645.10/x
  3. Step 3: Cross multiply
    23,438.94x = 35,138.97 × 8,645.10
  4. Step 4: Simplify right side
    23,438.94x = 303,779,909.55
  5. Step 5: Solve for x
    x = 303,779,909.55/23,438.94
  6. Step 6: Final answer
    x = 12,960.48

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Half scale
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Double scale
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Similar ratio
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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.