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Finding the Fourth Proportional to 25,246.80, 34,840.08 and 14,068.80

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Solution

The fourth proportional to 25,246.80, 34,840.08 and 14,068.80 is: 19,414.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,246.80 : 34,840.08 = 14,068.80 : x
  2. Step 2: Convert to fraction form
    25,246.80/34,840.08 = 14,068.80/x
  3. Step 3: Cross multiply
    25,246.80x = 34,840.08 × 14,068.80
  4. Step 4: Simplify right side
    25,246.80x = 490,158,117.50
  5. Step 5: Solve for x
    x = 490,158,117.50/25,246.80
  6. Step 6: Final answer
    x = 19,414.66

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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.