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Finding the Fourth Proportional to 30,611.40, 45,917.10 and 26,723.40

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Solution

The fourth proportional to 30,611.40, 45,917.10 and 26,723.40 is: 40,085.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,611.40 : 45,917.10 = 26,723.40 : x
  2. Step 2: Convert to fraction form
    30,611.40/45,917.10 = 26,723.40/x
  3. Step 3: Cross multiply
    30,611.40x = 45,917.10 × 26,723.40
  4. Step 4: Simplify right side
    30,611.40x = 1,227,061,030.14
  5. Step 5: Solve for x
    x = 1,227,061,030.14/30,611.40
  6. Step 6: Final answer
    x = 40,085.10

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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.