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Finding the Fourth Proportional to 47,039.66, 70,541.70 and 18,950.18

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Solution

The fourth proportional to 47,039.66, 70,541.70 and 18,950.18 is: 28,418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,039.66 : 70,541.70 = 18,950.18 : x
  2. Step 2: Convert to fraction form
    47,039.66/70,541.70 = 18,950.18/x
  3. Step 3: Cross multiply
    47,039.66x = 70,541.70 × 18,950.18
  4. Step 4: Simplify right side
    47,039.66x = 1,336,777,912.51
  5. Step 5: Solve for x
    x = 1,336,777,912.51/47,039.66
  6. Step 6: Final answer
    x = 28,418.10

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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.