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Finding the Fourth Proportional to 21,954.65, 30,300.95 and 16,326.77

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Solution

The fourth proportional to 21,954.65, 30,300.95 and 16,326.77 is: 22,533.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,954.65 : 30,300.95 = 16,326.77 : x
  2. Step 2: Convert to fraction form
    21,954.65/30,300.95 = 16,326.77/x
  3. Step 3: Cross multiply
    21,954.65x = 30,300.95 × 16,326.77
  4. Step 4: Simplify right side
    21,954.65x = 494,716,530.74
  5. Step 5: Solve for x
    x = 494,716,530.74/21,954.65
  6. Step 6: Final answer
    x = 22,533.57

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Half scale
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Double scale
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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.