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Finding the Fourth Proportional to 9,881.55, 14,823.11 and 3,307.76

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Solution

The fourth proportional to 9,881.55, 14,823.11 and 3,307.76 is: 4,961.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,881.55 : 14,823.11 = 3,307.76 : x
  2. Step 2: Convert to fraction form
    9,881.55/14,823.11 = 3,307.76/x
  3. Step 3: Cross multiply
    9,881.55x = 14,823.11 × 3,307.76
  4. Step 4: Simplify right side
    9,881.55x = 49,031,273.79
  5. Step 5: Solve for x
    x = 49,031,273.79/9,881.55
  6. Step 6: Final answer
    x = 4,961.90

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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.