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Finding the Fourth Proportional to 55,653.85, 83,479.89 and 17,702.58

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Solution

The fourth proportional to 55,653.85, 83,479.89 and 17,702.58 is: 26,553.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,653.85 : 83,479.89 = 17,702.58 : x
  2. Step 2: Convert to fraction form
    55,653.85/83,479.89 = 17,702.58/x
  3. Step 3: Cross multiply
    55,653.85x = 83,479.89 × 17,702.58
  4. Step 4: Simplify right side
    55,653.85x = 1,477,809,810.55
  5. Step 5: Solve for x
    x = 1,477,809,810.55/55,653.85
  6. Step 6: Final answer
    x = 26,553.59

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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.