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Finding the Fourth Proportional to 20,547.76, 30,791.76 and 16,368.88

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Solution

The fourth proportional to 20,547.76, 30,791.76 and 16,368.88 is: 24,529.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,547.76 : 30,791.76 = 16,368.88 : x
  2. Step 2: Convert to fraction form
    20,547.76/30,791.76 = 16,368.88/x
  3. Step 3: Cross multiply
    20,547.76x = 30,791.76 × 16,368.88
  4. Step 4: Simplify right side
    20,547.76x = 504,026,624.43
  5. Step 5: Solve for x
    x = 504,026,624.43/20,547.76
  6. Step 6: Final answer
    x = 24,529.52

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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.