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Finding the Fourth Proportional to 36,403.50, 54,605.52 and 11,779.50

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Solution

The fourth proportional to 36,403.50, 54,605.52 and 11,779.50 is: 17,669.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,403.50 : 54,605.52 = 11,779.50 : x
  2. Step 2: Convert to fraction form
    36,403.50/54,605.52 = 11,779.50/x
  3. Step 3: Cross multiply
    36,403.50x = 54,605.52 × 11,779.50
  4. Step 4: Simplify right side
    36,403.50x = 643,225,722.84
  5. Step 5: Solve for x
    x = 643,225,722.84/36,403.50
  6. Step 6: Final answer
    x = 17,669.34

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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.