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Finding the Fourth Proportional to 14,391.66, 19,860.19 and 8,018.25

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Solution

The fourth proportional to 14,391.66, 19,860.19 and 8,018.25 is: 11,065.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,391.66 : 19,860.19 = 8,018.25 : x
  2. Step 2: Convert to fraction form
    14,391.66/19,860.19 = 8,018.25/x
  3. Step 3: Cross multiply
    14,391.66x = 19,860.19 × 8,018.25
  4. Step 4: Simplify right side
    14,391.66x = 159,243,869.17
  5. Step 5: Solve for x
    x = 159,243,869.17/14,391.66
  6. Step 6: Final answer
    x = 11,065.01

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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.