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Finding the Fourth Proportional to 14,043.16, 21,071.22 and 7,022.89

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Solution

The fourth proportional to 14,043.16, 21,071.22 and 7,022.89 is: 10,537.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,043.16 : 21,071.22 = 7,022.89 : x
  2. Step 2: Convert to fraction form
    14,043.16/21,071.22 = 7,022.89/x
  3. Step 3: Cross multiply
    14,043.16x = 21,071.22 × 7,022.89
  4. Step 4: Simplify right side
    14,043.16x = 147,980,860.23
  5. Step 5: Solve for x
    x = 147,980,860.23/14,043.16
  6. Step 6: Final answer
    x = 10,537.58

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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.