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Finding the Fourth Proportional to 65,994.24, 91,071.72 and 35,779.44

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Solution

The fourth proportional to 65,994.24, 91,071.72 and 35,779.44 is: 49,375.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,994.24 : 91,071.72 = 35,779.44 : x
  2. Step 2: Convert to fraction form
    65,994.24/91,071.72 = 35,779.44/x
  3. Step 3: Cross multiply
    65,994.24x = 91,071.72 × 35,779.44
  4. Step 4: Simplify right side
    65,994.24x = 3,258,495,141.44
  5. Step 5: Solve for x
    x = 3,258,495,141.44/65,994.24
  6. Step 6: Final answer
    x = 49,375.45

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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.