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Finding the Fourth Proportional to 12,975.17, 17,902.04 and 7,307.94

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Solution

The fourth proportional to 12,975.17, 17,902.04 and 7,307.94 is: 10,082.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.17 : 17,902.04 = 7,307.94 : x
  2. Step 2: Convert to fraction form
    12,975.17/17,902.04 = 7,307.94/x
  3. Step 3: Cross multiply
    12,975.17x = 17,902.04 × 7,307.94
  4. Step 4: Simplify right side
    12,975.17x = 130,827,044.93
  5. Step 5: Solve for x
    x = 130,827,044.93/12,975.17
  6. Step 6: Final answer
    x = 10,082.87

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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.