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Finding the Fourth Proportional to 35,999.80, 53,974.10 and 13,804.60

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Solution

The fourth proportional to 35,999.80, 53,974.10 and 13,804.60 is: 20,697.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,999.80 : 53,974.10 = 13,804.60 : x
  2. Step 2: Convert to fraction form
    35,999.80/53,974.10 = 13,804.60/x
  3. Step 3: Cross multiply
    35,999.80x = 53,974.10 × 13,804.60
  4. Step 4: Simplify right side
    35,999.80x = 745,090,860.86
  5. Step 5: Solve for x
    x = 745,090,860.86/35,999.80
  6. Step 6: Final answer
    x = 20,697.08

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1.5x scale

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.