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Finding the Fourth Proportional to 37,718.63, 52,051.77 and 20,951.63

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Solution

The fourth proportional to 37,718.63, 52,051.77 and 20,951.63 is: 28,913.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,718.63 : 52,051.77 = 20,951.63 : x
  2. Step 2: Convert to fraction form
    37,718.63/52,051.77 = 20,951.63/x
  3. Step 3: Cross multiply
    37,718.63x = 52,051.77 × 20,951.63
  4. Step 4: Simplify right side
    37,718.63x = 1,090,569,165.63
  5. Step 5: Solve for x
    x = 1,090,569,165.63/37,718.63
  6. Step 6: Final answer
    x = 28,913.28

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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.