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Finding the Fourth Proportional to 57,061.08, 85,596 and 15,507

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Solution

The fourth proportional to 57,061.08, 85,596 and 15,507 is: 23,261.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,061.08 : 85,596 = 15,507 : x
  2. Step 2: Convert to fraction form
    57,061.08/85,596 = 15,507/x
  3. Step 3: Cross multiply
    57,061.08x = 85,596 × 15,507
  4. Step 4: Simplify right side
    57,061.08x = 1,327,337,172
  5. Step 5: Solve for x
    x = 1,327,337,172/57,061.08
  6. Step 6: Final answer
    x = 23,261.69

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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.