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Finding the Fourth Proportional to 57,196.80, 78,892.80 and 46,586.88

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Solution

The fourth proportional to 57,196.80, 78,892.80 and 46,586.88 is: 64,258.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,196.80 : 78,892.80 = 46,586.88 : x
  2. Step 2: Convert to fraction form
    57,196.80/78,892.80 = 46,586.88/x
  3. Step 3: Cross multiply
    57,196.80x = 78,892.80 × 46,586.88
  4. Step 4: Simplify right side
    57,196.80x = 3,675,369,406.46
  5. Step 5: Solve for x
    x = 3,675,369,406.46/57,196.80
  6. Step 6: Final answer
    x = 64,258.30

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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.