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Finding the Fourth Proportional to 70,526.70, 105,790.42 and 23,779.98

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Solution

The fourth proportional to 70,526.70, 105,790.42 and 23,779.98 is: 35,670.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,526.70 : 105,790.42 = 23,779.98 : x
  2. Step 2: Convert to fraction form
    70,526.70/105,790.42 = 23,779.98/x
  3. Step 3: Cross multiply
    70,526.70x = 105,790.42 × 23,779.98
  4. Step 4: Simplify right side
    70,526.70x = 2,515,694,071.79
  5. Step 5: Solve for x
    x = 2,515,694,071.79/70,526.70
  6. Step 6: Final answer
    x = 35,670.09

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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.