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Finding the Fourth Proportional to 53,385.96, 73,674 and 29,512.92

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Solution

The fourth proportional to 53,385.96, 73,674 and 29,512.92 is: 40,728.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,385.96 : 73,674 = 29,512.92 : x
  2. Step 2: Convert to fraction form
    53,385.96/73,674 = 29,512.92/x
  3. Step 3: Cross multiply
    53,385.96x = 73,674 × 29,512.92
  4. Step 4: Simplify right side
    53,385.96x = 2,174,334,868.08
  5. Step 5: Solve for x
    x = 2,174,334,868.08/53,385.96
  6. Step 6: Final answer
    x = 40,728.59

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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.