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Finding the Fourth Proportional to 14,641.21, 21,872.81 and 9,333.93

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Solution

The fourth proportional to 14,641.21, 21,872.81 and 9,333.93 is: 13,944.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,641.21 : 21,872.81 = 9,333.93 : x
  2. Step 2: Convert to fraction form
    14,641.21/21,872.81 = 9,333.93/x
  3. Step 3: Cross multiply
    14,641.21x = 21,872.81 × 9,333.93
  4. Step 4: Simplify right side
    14,641.21x = 204,159,356.55
  5. Step 5: Solve for x
    x = 204,159,356.55/14,641.21
  6. Step 6: Final answer
    x = 13,944.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.