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Finding the Fourth Proportional to 11,952.79, 16,493.69 and 6,916.01

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Solution

The fourth proportional to 11,952.79, 16,493.69 and 6,916.01 is: 9,543.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,952.79 : 16,493.69 = 6,916.01 : x
  2. Step 2: Convert to fraction form
    11,952.79/16,493.69 = 6,916.01/x
  3. Step 3: Cross multiply
    11,952.79x = 16,493.69 × 6,916.01
  4. Step 4: Simplify right side
    11,952.79x = 114,070,459.80
  5. Step 5: Solve for x
    x = 114,070,459.80/11,952.79
  6. Step 6: Final answer
    x = 9,543.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.