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Finding the Fourth Proportional to 14,320.18, 19,762.07 and 8,654.14

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Solution

The fourth proportional to 14,320.18, 19,762.07 and 8,654.14 is: 11,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,320.18 : 19,762.07 = 8,654.14 : x
  2. Step 2: Convert to fraction form
    14,320.18/19,762.07 = 8,654.14/x
  3. Step 3: Cross multiply
    14,320.18x = 19,762.07 × 8,654.14
  4. Step 4: Simplify right side
    14,320.18x = 171,023,720.47
  5. Step 5: Solve for x
    x = 171,023,720.47/14,320.18
  6. Step 6: Final answer
    x = 11,942.85

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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.