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Finding the Fourth Proportional to 14,666.88, 21,995.68 and 7,737.60

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Solution

The fourth proportional to 14,666.88, 21,995.68 and 7,737.60 is: 11,603.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,666.88 : 21,995.68 = 7,737.60 : x
  2. Step 2: Convert to fraction form
    14,666.88/21,995.68 = 7,737.60/x
  3. Step 3: Cross multiply
    14,666.88x = 21,995.68 × 7,737.60
  4. Step 4: Simplify right side
    14,666.88x = 170,193,773.57
  5. Step 5: Solve for x
    x = 170,193,773.57/14,666.88
  6. Step 6: Final answer
    x = 11,603.95

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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.