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Finding the Fourth Proportional to 51,720.63, 71,374.53 and 29,364.63

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Solution

The fourth proportional to 51,720.63, 71,374.53 and 29,364.63 is: 40,523.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,720.63 : 71,374.53 = 29,364.63 : x
  2. Step 2: Convert to fraction form
    51,720.63/71,374.53 = 29,364.63/x
  3. Step 3: Cross multiply
    51,720.63x = 71,374.53 × 29,364.63
  4. Step 4: Simplify right side
    51,720.63x = 2,095,886,664.87
  5. Step 5: Solve for x
    x = 2,095,886,664.87/51,720.63
  6. Step 6: Final answer
    x = 40,523.22

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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.