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Finding the Fourth Proportional to 57,699.16, 86,551.89 and 18,253.34

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Solution

The fourth proportional to 57,699.16, 86,551.89 and 18,253.34 is: 27,381.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,699.16 : 86,551.89 = 18,253.34 : x
  2. Step 2: Convert to fraction form
    57,699.16/86,551.89 = 18,253.34/x
  3. Step 3: Cross multiply
    57,699.16x = 86,551.89 × 18,253.34
  4. Step 4: Simplify right side
    57,699.16x = 1,579,861,075.81
  5. Step 5: Solve for x
    x = 1,579,861,075.81/57,699.16
  6. Step 6: Final answer
    x = 27,381.01

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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.