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Finding the Fourth Proportional to 35,718.75, 53,579.41 and 13,533.75

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Solution

The fourth proportional to 35,718.75, 53,579.41 and 13,533.75 is: 20,301.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,718.75 : 53,579.41 = 13,533.75 : x
  2. Step 2: Convert to fraction form
    35,718.75/53,579.41 = 13,533.75/x
  3. Step 3: Cross multiply
    35,718.75x = 53,579.41 × 13,533.75
  4. Step 4: Simplify right side
    35,718.75x = 725,130,306.25
  5. Step 5: Solve for x
    x = 725,130,306.25/35,718.75
  6. Step 6: Final answer
    x = 20,301.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.