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Finding the Fourth Proportional to 12,307.72, 16,984.02 and 6,717.64

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Solution

The fourth proportional to 12,307.72, 16,984.02 and 6,717.64 is: 9,270.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,307.72 : 16,984.02 = 6,717.64 : x
  2. Step 2: Convert to fraction form
    12,307.72/16,984.02 = 6,717.64/x
  3. Step 3: Cross multiply
    12,307.72x = 16,984.02 × 6,717.64
  4. Step 4: Simplify right side
    12,307.72x = 114,092,532.11
  5. Step 5: Solve for x
    x = 114,092,532.11/12,307.72
  6. Step 6: Final answer
    x = 9,270.00

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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.