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Finding the Fourth Proportional to 49,681.96, 74,522.93 and 28,890.88

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Solution

The fourth proportional to 49,681.96, 74,522.93 and 28,890.88 is: 43,336.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,681.96 : 74,522.93 = 28,890.88 : x
  2. Step 2: Convert to fraction form
    49,681.96/74,522.93 = 28,890.88/x
  3. Step 3: Cross multiply
    49,681.96x = 74,522.93 × 28,890.88
  4. Step 4: Simplify right side
    49,681.96x = 2,153,033,027.88
  5. Step 5: Solve for x
    x = 2,153,033,027.88/49,681.96
  6. Step 6: Final answer
    x = 43,336.31

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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.