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Finding the Fourth Proportional to 65,343.84, 90,094.80 and 55,254.24

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Solution

The fourth proportional to 65,343.84, 90,094.80 and 55,254.24 is: 76,183.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,343.84 : 90,094.80 = 55,254.24 : x
  2. Step 2: Convert to fraction form
    65,343.84/90,094.80 = 55,254.24/x
  3. Step 3: Cross multiply
    65,343.84x = 90,094.80 × 55,254.24
  4. Step 4: Simplify right side
    65,343.84x = 4,978,119,701.95
  5. Step 5: Solve for x
    x = 4,978,119,701.95/65,343.84
  6. Step 6: Final answer
    x = 76,183.46

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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.