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Finding the Fourth Proportional to 47,307.62, 70,963.11 and 11,769.12

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Solution

The fourth proportional to 47,307.62, 70,963.11 and 11,769.12 is: 17,654.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,307.62 : 70,963.11 = 11,769.12 : x
  2. Step 2: Convert to fraction form
    47,307.62/70,963.11 = 11,769.12/x
  3. Step 3: Cross multiply
    47,307.62x = 70,963.11 × 11,769.12
  4. Step 4: Simplify right side
    47,307.62x = 835,173,357.16
  5. Step 5: Solve for x
    x = 835,173,357.16/47,307.62
  6. Step 6: Final answer
    x = 17,654.10

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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.