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Finding the Fourth Proportional to 13,159.67, 19,737.88 and 5,762.75

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Solution

The fourth proportional to 13,159.67, 19,737.88 and 5,762.75 is: 8,643.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159.67 : 19,737.88 = 5,762.75 : x
  2. Step 2: Convert to fraction form
    13,159.67/19,737.88 = 5,762.75/x
  3. Step 3: Cross multiply
    13,159.67x = 19,737.88 × 5,762.75
  4. Step 4: Simplify right side
    13,159.67x = 113,744,354.87
  5. Step 5: Solve for x
    x = 113,744,354.87/13,159.67
  6. Step 6: Final answer
    x = 8,643.41

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1.5x scale

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.