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Finding the Fourth Proportional to 12,061.84, 16,643.44 and 7,347.64

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Solution

The fourth proportional to 12,061.84, 16,643.44 and 7,347.64 is: 10,138.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,061.84 : 16,643.44 = 7,347.64 : x
  2. Step 2: Convert to fraction form
    12,061.84/16,643.44 = 7,347.64/x
  3. Step 3: Cross multiply
    12,061.84x = 16,643.44 × 7,347.64
  4. Step 4: Simplify right side
    12,061.84x = 122,290,005.48
  5. Step 5: Solve for x
    x = 122,290,005.48/12,061.84
  6. Step 6: Final answer
    x = 10,138.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.