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Finding the Fourth Proportional to 30,943.42, 46,416.90 and 8,754.93

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Solution

The fourth proportional to 30,943.42, 46,416.90 and 8,754.93 is: 13,132.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,943.42 : 46,416.90 = 8,754.93 : x
  2. Step 2: Convert to fraction form
    30,943.42/46,416.90 = 8,754.93/x
  3. Step 3: Cross multiply
    30,943.42x = 46,416.90 × 8,754.93
  4. Step 4: Simplify right side
    30,943.42x = 406,376,743.15
  5. Step 5: Solve for x
    x = 406,376,743.15/30,943.42
  6. Step 6: Final answer
    x = 13,132.90

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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.