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Finding the Fourth Proportional to 55,509.65, 76,585.80 and 33,976.92

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Solution

The fourth proportional to 55,509.65, 76,585.80 and 33,976.92 is: 46,877.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,509.65 : 76,585.80 = 33,976.92 : x
  2. Step 2: Convert to fraction form
    55,509.65/76,585.80 = 33,976.92/x
  3. Step 3: Cross multiply
    55,509.65x = 76,585.80 × 33,976.92
  4. Step 4: Simplify right side
    55,509.65x = 2,602,149,599.74
  5. Step 5: Solve for x
    x = 2,602,149,599.74/55,509.65
  6. Step 6: Final answer
    x = 46,877.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.