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Finding the Fourth Proportional to 8,526.61, 12,779.54 and 3,845.39

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Solution

The fourth proportional to 8,526.61, 12,779.54 and 3,845.39 is: 5,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,526.61 : 12,779.54 = 3,845.39 : x
  2. Step 2: Convert to fraction form
    8,526.61/12,779.54 = 3,845.39/x
  3. Step 3: Cross multiply
    8,526.61x = 12,779.54 × 3,845.39
  4. Step 4: Simplify right side
    8,526.61x = 49,142,246.62
  5. Step 5: Solve for x
    x = 49,142,246.62/8,526.61
  6. Step 6: Final answer
    x = 5,763.40

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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.