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Finding the Fourth Proportional to 54,601.40, 81,904.80 and 28,357.40

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Solution

The fourth proportional to 54,601.40, 81,904.80 and 28,357.40 is: 42,537.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,601.40 : 81,904.80 = 28,357.40 : x
  2. Step 2: Convert to fraction form
    54,601.40/81,904.80 = 28,357.40/x
  3. Step 3: Cross multiply
    54,601.40x = 81,904.80 × 28,357.40
  4. Step 4: Simplify right side
    54,601.40x = 2,322,607,175.52
  5. Step 5: Solve for x
    x = 2,322,607,175.52/54,601.40
  6. Step 6: Final answer
    x = 42,537.50

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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.