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Finding the Fourth Proportional to 53,009.63, 73,153.70 and 29,136.70

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Solution

The fourth proportional to 53,009.63, 73,153.70 and 29,136.70 is: 40,208.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,009.63 : 73,153.70 = 29,136.70 : x
  2. Step 2: Convert to fraction form
    53,009.63/73,153.70 = 29,136.70/x
  3. Step 3: Cross multiply
    53,009.63x = 73,153.70 × 29,136.70
  4. Step 4: Simplify right side
    53,009.63x = 2,131,457,410.79
  5. Step 5: Solve for x
    x = 2,131,457,410.79/53,009.63
  6. Step 6: Final answer
    x = 40,208.87

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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.