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Finding the Fourth Proportional to 30,903.40, 46,355.10 and 27,015.40

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Solution

The fourth proportional to 30,903.40, 46,355.10 and 27,015.40 is: 40,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,903.40 : 46,355.10 = 27,015.40 : x
  2. Step 2: Convert to fraction form
    30,903.40/46,355.10 = 27,015.40/x
  3. Step 3: Cross multiply
    30,903.40x = 46,355.10 × 27,015.40
  4. Step 4: Simplify right side
    30,903.40x = 1,252,301,568.54
  5. Step 5: Solve for x
    x = 1,252,301,568.54/30,903.40
  6. Step 6: Final answer
    x = 40,523.10

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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.