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Finding the Fourth Proportional to 25,459.54, 38,180.19 and 8,815.10

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Solution

The fourth proportional to 25,459.54, 38,180.19 and 8,815.10 is: 13,219.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,459.54 : 38,180.19 = 8,815.10 : x
  2. Step 2: Convert to fraction form
    25,459.54/38,180.19 = 8,815.10/x
  3. Step 3: Cross multiply
    25,459.54x = 38,180.19 × 8,815.10
  4. Step 4: Simplify right side
    25,459.54x = 336,562,192.87
  5. Step 5: Solve for x
    x = 336,562,192.87/25,459.54
  6. Step 6: Final answer
    x = 13,219.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.