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Finding the Fourth Proportional to 9,907.84, 14,859.37 and 2,885.95

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Solution

The fourth proportional to 9,907.84, 14,859.37 and 2,885.95 is: 4,328.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,907.84 : 14,859.37 = 2,885.95 : x
  2. Step 2: Convert to fraction form
    9,907.84/14,859.37 = 2,885.95/x
  3. Step 3: Cross multiply
    9,907.84x = 14,859.37 × 2,885.95
  4. Step 4: Simplify right side
    9,907.84x = 42,883,398.85
  5. Step 5: Solve for x
    x = 42,883,398.85/9,907.84
  6. Step 6: Final answer
    x = 4,328.23

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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.