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Finding the Fourth Proportional to 84,968.71, 127,444.81 and 25,804.90

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Solution

The fourth proportional to 84,968.71, 127,444.81 and 25,804.90 is: 38,704.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,968.71 : 127,444.81 = 25,804.90 : x
  2. Step 2: Convert to fraction form
    84,968.71/127,444.81 = 25,804.90/x
  3. Step 3: Cross multiply
    84,968.71x = 127,444.81 × 25,804.90
  4. Step 4: Simplify right side
    84,968.71x = 3,288,700,577.57
  5. Step 5: Solve for x
    x = 3,288,700,577.57/84,968.71
  6. Step 6: Final answer
    x = 38,704.84

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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.