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Finding the Fourth Proportional to 38,683.64, 58,015.82 and 10,603.82

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Solution

The fourth proportional to 38,683.64, 58,015.82 and 10,603.82 is: 15,903.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,683.64 : 58,015.82 = 10,603.82 : x
  2. Step 2: Convert to fraction form
    38,683.64/58,015.82 = 10,603.82/x
  3. Step 3: Cross multiply
    38,683.64x = 58,015.82 × 10,603.82
  4. Step 4: Simplify right side
    38,683.64x = 615,189,312.43
  5. Step 5: Solve for x
    x = 615,189,312.43/38,683.64
  6. Step 6: Final answer
    x = 15,903.09

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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.