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Finding the Fourth Proportional to 13,765.95, 19,000.04 and 9,050.67

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Solution

The fourth proportional to 13,765.95, 19,000.04 and 9,050.67 is: 12,491.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.95 : 19,000.04 = 9,050.67 : x
  2. Step 2: Convert to fraction form
    13,765.95/19,000.04 = 9,050.67/x
  3. Step 3: Cross multiply
    13,765.95x = 19,000.04 × 9,050.67
  4. Step 4: Simplify right side
    13,765.95x = 171,963,092.03
  5. Step 5: Solve for x
    x = 171,963,092.03/13,765.95
  6. Step 6: Final answer
    x = 12,491.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.