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Finding the Fourth Proportional to 54,285.70, 81,428.55 and 23,124.10

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Solution

The fourth proportional to 54,285.70, 81,428.55 and 23,124.10 is: 34,686.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,285.70 : 81,428.55 = 23,124.10 : x
  2. Step 2: Convert to fraction form
    54,285.70/81,428.55 = 23,124.10/x
  3. Step 3: Cross multiply
    54,285.70x = 81,428.55 × 23,124.10
  4. Step 4: Simplify right side
    54,285.70x = 1,882,961,933.06
  5. Step 5: Solve for x
    x = 1,882,961,933.06/54,285.70
  6. Step 6: Final answer
    x = 34,686.15

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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.