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Finding the Fourth Proportional to 61,152.56, 91,722.68 and 16,783.78

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Solution

The fourth proportional to 61,152.56, 91,722.68 and 16,783.78 is: 25,173.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,152.56 : 91,722.68 = 16,783.78 : x
  2. Step 2: Convert to fraction form
    61,152.56/91,722.68 = 16,783.78/x
  3. Step 3: Cross multiply
    61,152.56x = 91,722.68 × 16,783.78
  4. Step 4: Simplify right side
    61,152.56x = 1,539,453,282.13
  5. Step 5: Solve for x
    x = 1,539,453,282.13/61,152.56
  6. Step 6: Final answer
    x = 25,173.98

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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.