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Finding the Fourth Proportional to 8,907.77, 13,357.54 and 5,012.18

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Solution

The fourth proportional to 8,907.77, 13,357.54 and 5,012.18 is: 7,515.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.77 : 13,357.54 = 5,012.18 : x
  2. Step 2: Convert to fraction form
    8,907.77/13,357.54 = 5,012.18/x
  3. Step 3: Cross multiply
    8,907.77x = 13,357.54 × 5,012.18
  4. Step 4: Simplify right side
    8,907.77x = 66,950,384.41
  5. Step 5: Solve for x
    x = 66,950,384.41/8,907.77
  6. Step 6: Final answer
    x = 7,515.95

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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.