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Finding the Fourth Proportional to 39,999.54, 60,007.80 and 13,697.22

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Solution

The fourth proportional to 39,999.54, 60,007.80 and 13,697.22 is: 20,548.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,999.54 : 60,007.80 = 13,697.22 : x
  2. Step 2: Convert to fraction form
    39,999.54/60,007.80 = 13,697.22/x
  3. Step 3: Cross multiply
    39,999.54x = 60,007.80 × 13,697.22
  4. Step 4: Simplify right side
    39,999.54x = 821,940,038.32
  5. Step 5: Solve for x
    x = 821,940,038.32/39,999.54
  6. Step 6: Final answer
    x = 20,548.74

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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.