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Finding the Fourth Proportional to 39,322.83, 54,263.73 and 21,416.76

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Solution

The fourth proportional to 39,322.83, 54,263.73 and 21,416.76 is: 29,554.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,322.83 : 54,263.73 = 21,416.76 : x
  2. Step 2: Convert to fraction form
    39,322.83/54,263.73 = 21,416.76/x
  3. Step 3: Cross multiply
    39,322.83x = 54,263.73 × 21,416.76
  4. Step 4: Simplify right side
    39,322.83x = 1,162,153,282.11
  5. Step 5: Solve for x
    x = 1,162,153,282.11/39,322.83
  6. Step 6: Final answer
    x = 29,554.16

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