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Finding the Fourth Proportional to 14,577.71, 21,866.90 and 5,218.37

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Solution

The fourth proportional to 14,577.71, 21,866.90 and 5,218.37 is: 7,827.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,577.71 : 21,866.90 = 5,218.37 : x
  2. Step 2: Convert to fraction form
    14,577.71/21,866.90 = 5,218.37/x
  3. Step 3: Cross multiply
    14,577.71x = 21,866.90 × 5,218.37
  4. Step 4: Simplify right side
    14,577.71x = 114,109,460.03
  5. Step 5: Solve for x
    x = 114,109,460.03/14,577.71
  6. Step 6: Final answer
    x = 7,827.67

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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.