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Finding the Fourth Proportional to 35,888.01, 53,835.60 and 13,720.04

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Solution

The fourth proportional to 35,888.01, 53,835.60 and 13,720.04 is: 20,581.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,888.01 : 53,835.60 = 13,720.04 : x
  2. Step 2: Convert to fraction form
    35,888.01/53,835.60 = 13,720.04/x
  3. Step 3: Cross multiply
    35,888.01x = 53,835.60 × 13,720.04
  4. Step 4: Simplify right side
    35,888.01x = 738,626,316.25
  5. Step 5: Solve for x
    x = 738,626,316.25/35,888.01
  6. Step 6: Final answer
    x = 20,581.42

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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.