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Finding the Fourth Proportional to 55,979.52, 83,559.74 and 49,336.72

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Solution

The fourth proportional to 55,979.52, 83,559.74 and 49,336.72 is: 73,644.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,979.52 : 83,559.74 = 49,336.72 : x
  2. Step 2: Convert to fraction form
    55,979.52/83,559.74 = 49,336.72/x
  3. Step 3: Cross multiply
    55,979.52x = 83,559.74 × 49,336.72
  4. Step 4: Simplify right side
    55,979.52x = 4,122,563,495.65
  5. Step 5: Solve for x
    x = 4,122,563,495.65/55,979.52
  6. Step 6: Final answer
    x = 73,644.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.