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Finding the Fourth Proportional to 71,258.95, 106,906.88 and 26,886.09

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Solution

The fourth proportional to 71,258.95, 106,906.88 and 26,886.09 is: 40,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,258.95 : 106,906.88 = 26,886.09 : x
  2. Step 2: Convert to fraction form
    71,258.95/106,906.88 = 26,886.09/x
  3. Step 3: Cross multiply
    71,258.95x = 106,906.88 × 26,886.09
  4. Step 4: Simplify right side
    71,258.95x = 2,874,307,995.50
  5. Step 5: Solve for x
    x = 2,874,307,995.50/71,258.95
  6. Step 6: Final answer
    x = 40,336.10

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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.