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Finding the Fourth Proportional to 54,955.45, 82,423.95 and 15,503.32

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Solution

The fourth proportional to 54,955.45, 82,423.95 and 15,503.32 is: 23,252.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,955.45 : 82,423.95 = 15,503.32 : x
  2. Step 2: Convert to fraction form
    54,955.45/82,423.95 = 15,503.32/x
  3. Step 3: Cross multiply
    54,955.45x = 82,423.95 × 15,503.32
  4. Step 4: Simplify right side
    54,955.45x = 1,277,844,872.51
  5. Step 5: Solve for x
    x = 1,277,844,872.51/54,955.45
  6. Step 6: Final answer
    x = 23,252.38

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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.