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Finding the Fourth Proportional to 9,710.78, 14,566.10 and 7,975.76

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Solution

The fourth proportional to 9,710.78, 14,566.10 and 7,975.76 is: 11,963.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,710.78 : 14,566.10 = 7,975.76 : x
  2. Step 2: Convert to fraction form
    9,710.78/14,566.10 = 7,975.76/x
  3. Step 3: Cross multiply
    9,710.78x = 14,566.10 × 7,975.76
  4. Step 4: Simplify right side
    9,710.78x = 116,175,605.03
  5. Step 5: Solve for x
    x = 116,175,605.03/9,710.78
  6. Step 6: Final answer
    x = 11,963.58

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Double scale
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Similar ratio
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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.