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Finding the Fourth Proportional to 66,783.42, 100,275.48 and 63,573.48

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Solution

The fourth proportional to 66,783.42, 100,275.48 and 63,573.48 is: 95,455.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,783.42 : 100,275.48 = 63,573.48 : x
  2. Step 2: Convert to fraction form
    66,783.42/100,275.48 = 63,573.48/x
  3. Step 3: Cross multiply
    66,783.42x = 100,275.48 × 63,573.48
  4. Step 4: Simplify right side
    66,783.42x = 6,374,861,222.27
  5. Step 5: Solve for x
    x = 6,374,861,222.27/66,783.42
  6. Step 6: Final answer
    x = 95,455.75

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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.