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Finding the Fourth Proportional to 30,343.98, 41,873.27 and 16,916.51

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Solution

The fourth proportional to 30,343.98, 41,873.27 and 16,916.51 is: 23,343.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,343.98 : 41,873.27 = 16,916.51 : x
  2. Step 2: Convert to fraction form
    30,343.98/41,873.27 = 16,916.51/x
  3. Step 3: Cross multiply
    30,343.98x = 41,873.27 × 16,916.51
  4. Step 4: Simplify right side
    30,343.98x = 708,349,296.74
  5. Step 5: Solve for x
    x = 708,349,296.74/30,343.98
  6. Step 6: Final answer
    x = 23,343.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.