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Finding the Fourth Proportional to 10,647.99, 15,951.51 and 5,953.76

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Solution

The fourth proportional to 10,647.99, 15,951.51 and 5,953.76 is: 8,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,647.99 : 15,951.51 = 5,953.76 : x
  2. Step 2: Convert to fraction form
    10,647.99/15,951.51 = 5,953.76/x
  3. Step 3: Cross multiply
    10,647.99x = 15,951.51 × 5,953.76
  4. Step 4: Simplify right side
    10,647.99x = 94,971,524.38
  5. Step 5: Solve for x
    x = 94,971,524.38/10,647.99
  6. Step 6: Final answer
    x = 8,919.20

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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.