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Finding the Fourth Proportional to 65,957.40, 91,025.68 and 37,267.12

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Solution

The fourth proportional to 65,957.40, 91,025.68 and 37,267.12 is: 51,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,957.40 : 91,025.68 = 37,267.12 : x
  2. Step 2: Convert to fraction form
    65,957.40/91,025.68 = 37,267.12/x
  3. Step 3: Cross multiply
    65,957.40x = 91,025.68 × 37,267.12
  4. Step 4: Simplify right side
    65,957.40x = 3,392,264,939.64
  5. Step 5: Solve for x
    x = 3,392,264,939.64/65,957.40
  6. Step 6: Final answer
    x = 51,431.15

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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.