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Finding the Fourth Proportional to 65,036.81, 89,750.80 and 35,228.81

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Solution

The fourth proportional to 65,036.81, 89,750.80 and 35,228.81 is: 48,615.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,036.81 : 89,750.80 = 35,228.81 : x
  2. Step 2: Convert to fraction form
    65,036.81/89,750.80 = 35,228.81/x
  3. Step 3: Cross multiply
    65,036.81x = 89,750.80 × 35,228.81
  4. Step 4: Simplify right side
    65,036.81x = 3,161,814,148.96
  5. Step 5: Solve for x
    x = 3,161,814,148.96/65,036.81
  6. Step 6: Final answer
    x = 48,615.76

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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.