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Finding the Fourth Proportional to 69,303.51, 95,638.38 and 39,089.08

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Solution

The fourth proportional to 69,303.51, 95,638.38 and 39,089.08 is: 53,942.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,303.51 : 95,638.38 = 39,089.08 : x
  2. Step 2: Convert to fraction form
    69,303.51/95,638.38 = 39,089.08/x
  3. Step 3: Cross multiply
    69,303.51x = 95,638.38 × 39,089.08
  4. Step 4: Simplify right side
    69,303.51x = 3,738,416,259.85
  5. Step 5: Solve for x
    x = 3,738,416,259.85/69,303.51
  6. Step 6: Final answer
    x = 53,942.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.