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Finding the Fourth Proportional to 63,824.55, 88,020.54 and 39,953.40

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Solution

The fourth proportional to 63,824.55, 88,020.54 and 39,953.40 is: 55,099.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,824.55 : 88,020.54 = 39,953.40 : x
  2. Step 2: Convert to fraction form
    63,824.55/88,020.54 = 39,953.40/x
  3. Step 3: Cross multiply
    63,824.55x = 88,020.54 × 39,953.40
  4. Step 4: Simplify right side
    63,824.55x = 3,516,719,842.84
  5. Step 5: Solve for x
    x = 3,516,719,842.84/63,824.55
  6. Step 6: Final answer
    x = 55,099.80

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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.