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Finding the Fourth Proportional to 14,907.71, 20,570.96 and 8,536.01

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Solution

The fourth proportional to 14,907.71, 20,570.96 and 8,536.01 is: 11,778.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,907.71 : 20,570.96 = 8,536.01 : x
  2. Step 2: Convert to fraction form
    14,907.71/20,570.96 = 8,536.01/x
  3. Step 3: Cross multiply
    14,907.71x = 20,570.96 × 8,536.01
  4. Step 4: Simplify right side
    14,907.71x = 175,593,774.73
  5. Step 5: Solve for x
    x = 175,593,774.73/14,907.71
  6. Step 6: Final answer
    x = 11,778.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.