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Finding the Fourth Proportional to 14,828.19, 20,461.17 and 8,858.49

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Solution

The fourth proportional to 14,828.19, 20,461.17 and 8,858.49 is: 12,223.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,828.19 : 20,461.17 = 8,858.49 : x
  2. Step 2: Convert to fraction form
    14,828.19/20,461.17 = 8,858.49/x
  3. Step 3: Cross multiply
    14,828.19x = 20,461.17 × 8,858.49
  4. Step 4: Simplify right side
    14,828.19x = 181,255,069.83
  5. Step 5: Solve for x
    x = 181,255,069.83/14,828.19
  6. Step 6: Final answer
    x = 12,223.68

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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.