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Finding the Fourth Proportional to 57,146.96, 85,740.96 and 25,554.32

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Solution

The fourth proportional to 57,146.96, 85,740.96 and 25,554.32 is: 38,340.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,146.96 : 85,740.96 = 25,554.32 : x
  2. Step 2: Convert to fraction form
    57,146.96/85,740.96 = 25,554.32/x
  3. Step 3: Cross multiply
    57,146.96x = 85,740.96 × 25,554.32
  4. Step 4: Simplify right side
    57,146.96x = 2,191,051,928.95
  5. Step 5: Solve for x
    x = 2,191,051,928.95/57,146.96
  6. Step 6: Final answer
    x = 38,340.66

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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.