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Finding the Fourth Proportional to 38,993.76, 58,492.08 and 10,913.76

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Solution

The fourth proportional to 38,993.76, 58,492.08 and 10,913.76 is: 16,371.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,993.76 : 58,492.08 = 10,913.76 : x
  2. Step 2: Convert to fraction form
    38,993.76/58,492.08 = 10,913.76/x
  3. Step 3: Cross multiply
    38,993.76x = 58,492.08 × 10,913.76
  4. Step 4: Simplify right side
    38,993.76x = 638,368,523.02
  5. Step 5: Solve for x
    x = 638,368,523.02/38,993.76
  6. Step 6: Final answer
    x = 16,371.04

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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.