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Finding the Fourth Proportional to 21,358.58, 32,038.50 and 5,776.34

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Solution

The fourth proportional to 21,358.58, 32,038.50 and 5,776.34 is: 8,664.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,358.58 : 32,038.50 = 5,776.34 : x
  2. Step 2: Convert to fraction form
    21,358.58/32,038.50 = 5,776.34/x
  3. Step 3: Cross multiply
    21,358.58x = 32,038.50 × 5,776.34
  4. Step 4: Simplify right side
    21,358.58x = 185,065,269.09
  5. Step 5: Solve for x
    x = 185,065,269.09/21,358.58
  6. Step 6: Final answer
    x = 8,664.68

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.