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Finding the Fourth Proportional to 11,675.14, 17,515.95 and 4,923.70

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Solution

The fourth proportional to 11,675.14, 17,515.95 and 4,923.70 is: 7,386.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,675.14 : 17,515.95 = 4,923.70 : x
  2. Step 2: Convert to fraction form
    11,675.14/17,515.95 = 4,923.70/x
  3. Step 3: Cross multiply
    11,675.14x = 17,515.95 × 4,923.70
  4. Step 4: Simplify right side
    11,675.14x = 86,243,283.02
  5. Step 5: Solve for x
    x = 86,243,283.02/11,675.14
  6. Step 6: Final answer
    x = 7,386.92

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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.