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Finding the Fourth Proportional to 11,655.79, 17,483.80 and 9,330.57

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Solution

The fourth proportional to 11,655.79, 17,483.80 and 9,330.57 is: 13,995.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,655.79 : 17,483.80 = 9,330.57 : x
  2. Step 2: Convert to fraction form
    11,655.79/17,483.80 = 9,330.57/x
  3. Step 3: Cross multiply
    11,655.79x = 17,483.80 × 9,330.57
  4. Step 4: Simplify right side
    11,655.79x = 163,133,847.27
  5. Step 5: Solve for x
    x = 163,133,847.27/11,655.79
  6. Step 6: Final answer
    x = 13,995.95

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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.