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Finding the Fourth Proportional to 14,798.65, 20,418.78 and 8,829.16

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Solution

The fourth proportional to 14,798.65, 20,418.78 and 8,829.16 is: 12,182.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,798.65 : 20,418.78 = 8,829.16 : x
  2. Step 2: Convert to fraction form
    14,798.65/20,418.78 = 8,829.16/x
  3. Step 3: Cross multiply
    14,798.65x = 20,418.78 × 8,829.16
  4. Step 4: Simplify right side
    14,798.65x = 180,280,675.62
  5. Step 5: Solve for x
    x = 180,280,675.62/14,798.65
  6. Step 6: Final answer
    x = 12,182.24

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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.