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Finding the Fourth Proportional to 10,750.88, 16,128.21 and 4,908.08

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Solution

The fourth proportional to 10,750.88, 16,128.21 and 4,908.08 is: 7,362.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,750.88 : 16,128.21 = 4,908.08 : x
  2. Step 2: Convert to fraction form
    10,750.88/16,128.21 = 4,908.08/x
  3. Step 3: Cross multiply
    10,750.88x = 16,128.21 × 4,908.08
  4. Step 4: Simplify right side
    10,750.88x = 79,158,492.35
  5. Step 5: Solve for x
    x = 79,158,492.35/10,750.88
  6. Step 6: Final answer
    x = 7,362.98

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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.