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Finding the Fourth Proportional to 14,168.84, 21,252.78 and 7,607.84

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Solution

The fourth proportional to 14,168.84, 21,252.78 and 7,607.84 is: 11,411.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,168.84 : 21,252.78 = 7,607.84 : x
  2. Step 2: Convert to fraction form
    14,168.84/21,252.78 = 7,607.84/x
  3. Step 3: Cross multiply
    14,168.84x = 21,252.78 × 7,607.84
  4. Step 4: Simplify right side
    14,168.84x = 161,687,643.53
  5. Step 5: Solve for x
    x = 161,687,643.53/14,168.84
  6. Step 6: Final answer
    x = 11,411.50

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Half scale
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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.