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Finding the Fourth Proportional to 25,418.76, 35,078.76 and 14,088.12

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Solution

The fourth proportional to 25,418.76, 35,078.76 and 14,088.12 is: 19,442.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,418.76 : 35,078.76 = 14,088.12 : x
  2. Step 2: Convert to fraction form
    25,418.76/35,078.76 = 14,088.12/x
  3. Step 3: Cross multiply
    25,418.76x = 35,078.76 × 14,088.12
  4. Step 4: Simplify right side
    25,418.76x = 494,193,780.33
  5. Step 5: Solve for x
    x = 494,193,780.33/25,418.76
  6. Step 6: Final answer
    x = 19,442.09

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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.