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Finding the Fourth Proportional to 14,836.98, 20,475 and 8,868.36

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Solution

The fourth proportional to 14,836.98, 20,475 and 8,868.36 is: 12,238.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,836.98 : 20,475 = 8,868.36 : x
  2. Step 2: Convert to fraction form
    14,836.98/20,475 = 8,868.36/x
  3. Step 3: Cross multiply
    14,836.98x = 20,475 × 8,868.36
  4. Step 4: Simplify right side
    14,836.98x = 181,579,671
  5. Step 5: Solve for x
    x = 181,579,671/14,836.98
  6. Step 6: Final answer
    x = 12,238.32

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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.