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Finding the Fourth Proportional to 39,481, 59,230.86 and 11,779.72

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Solution

The fourth proportional to 39,481, 59,230.86 and 11,779.72 is: 17,672.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,481 : 59,230.86 = 11,779.72 : x
  2. Step 2: Convert to fraction form
    39,481/59,230.86 = 11,779.72/x
  3. Step 3: Cross multiply
    39,481x = 59,230.86 × 11,779.72
  4. Step 4: Simplify right side
    39,481x = 697,722,946.16
  5. Step 5: Solve for x
    x = 697,722,946.16/39,481
  6. Step 6: Final answer
    x = 17,672.37

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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.