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Finding the Fourth Proportional to 9,903.88, 14,856.54 and 3,330.76

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Solution

The fourth proportional to 9,903.88, 14,856.54 and 3,330.76 is: 4,996.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.88 : 14,856.54 = 3,330.76 : x
  2. Step 2: Convert to fraction form
    9,903.88/14,856.54 = 3,330.76/x
  3. Step 3: Cross multiply
    9,903.88x = 14,856.54 × 3,330.76
  4. Step 4: Simplify right side
    9,903.88x = 49,483,569.17
  5. Step 5: Solve for x
    x = 49,483,569.17/9,903.88
  6. Step 6: Final answer
    x = 4,996.38

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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.