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Finding the Fourth Proportional to 14,381.88, 21,541.65 and 6,970.83

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Solution

The fourth proportional to 14,381.88, 21,541.65 and 6,970.83 is: 10,441.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,381.88 : 21,541.65 = 6,970.83 : x
  2. Step 2: Convert to fraction form
    14,381.88/21,541.65 = 6,970.83/x
  3. Step 3: Cross multiply
    14,381.88x = 21,541.65 × 6,970.83
  4. Step 4: Simplify right side
    14,381.88x = 150,163,180.07
  5. Step 5: Solve for x
    x = 150,163,180.07/14,381.88
  6. Step 6: Final answer
    x = 10,441.14

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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.