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Finding the Fourth Proportional to 30,849.48, 46,278.90 and 10,068.12

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Solution

The fourth proportional to 30,849.48, 46,278.90 and 10,068.12 is: 15,103.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,849.48 : 46,278.90 = 10,068.12 : x
  2. Step 2: Convert to fraction form
    30,849.48/46,278.90 = 10,068.12/x
  3. Step 3: Cross multiply
    30,849.48x = 46,278.90 × 10,068.12
  4. Step 4: Simplify right side
    30,849.48x = 465,941,518.67
  5. Step 5: Solve for x
    x = 465,941,518.67/30,849.48
  6. Step 6: Final answer
    x = 15,103.71

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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.