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Finding the Fourth Proportional to 35,858.58, 53,750.81 and 13,666.01

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Solution

The fourth proportional to 35,858.58, 53,750.81 and 13,666.01 is: 20,484.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,858.58 : 53,750.81 = 13,666.01 : x
  2. Step 2: Convert to fraction form
    35,858.58/53,750.81 = 13,666.01/x
  3. Step 3: Cross multiply
    35,858.58x = 53,750.81 × 13,666.01
  4. Step 4: Simplify right side
    35,858.58x = 734,558,769.88
  5. Step 5: Solve for x
    x = 734,558,769.88/35,858.58
  6. Step 6: Final answer
    x = 20,484.88

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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.