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Finding the Fourth Proportional to 45,555.88, 68,343.72 and 13,966.06

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Solution

The fourth proportional to 45,555.88, 68,343.72 and 13,966.06 is: 20,952.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,555.88 : 68,343.72 = 13,966.06 : x
  2. Step 2: Convert to fraction form
    45,555.88/68,343.72 = 13,966.06/x
  3. Step 3: Cross multiply
    45,555.88x = 68,343.72 × 13,966.06
  4. Step 4: Simplify right side
    45,555.88x = 954,492,494.14
  5. Step 5: Solve for x
    x = 954,492,494.14/45,555.88
  6. Step 6: Final answer
    x = 20,952.13

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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.