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Finding the Fourth Proportional to 57,008.75, 85,525.74 and 19,567.98

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Solution

The fourth proportional to 57,008.75, 85,525.74 and 19,567.98 is: 29,356.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008.75 : 85,525.74 = 19,567.98 : x
  2. Step 2: Convert to fraction form
    57,008.75/85,525.74 = 19,567.98/x
  3. Step 3: Cross multiply
    57,008.75x = 85,525.74 × 19,567.98
  4. Step 4: Simplify right side
    57,008.75x = 1,673,565,969.81
  5. Step 5: Solve for x
    x = 1,673,565,969.81/57,008.75
  6. Step 6: Final answer
    x = 29,356.30

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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.