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Finding the Fourth Proportional to 65,339.08, 97,994.22 and 20,957.32

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Solution

The fourth proportional to 65,339.08, 97,994.22 and 20,957.32 is: 31,431.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,339.08 : 97,994.22 = 20,957.32 : x
  2. Step 2: Convert to fraction form
    65,339.08/97,994.22 = 20,957.32/x
  3. Step 3: Cross multiply
    65,339.08x = 97,994.22 × 20,957.32
  4. Step 4: Simplify right side
    65,339.08x = 2,053,696,226.69
  5. Step 5: Solve for x
    x = 2,053,696,226.69/65,339.08
  6. Step 6: Final answer
    x = 31,431.36

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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.