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Finding the Fourth Proportional to 62,871.64, 86,763.21 and 34,191.63

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Solution

The fourth proportional to 62,871.64, 86,763.21 and 34,191.63 is: 47,184.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,871.64 : 86,763.21 = 34,191.63 : x
  2. Step 2: Convert to fraction form
    62,871.64/86,763.21 = 34,191.63/x
  3. Step 3: Cross multiply
    62,871.64x = 86,763.21 × 34,191.63
  4. Step 4: Simplify right side
    62,871.64x = 2,966,575,573.93
  5. Step 5: Solve for x
    x = 2,966,575,573.93/62,871.64
  6. Step 6: Final answer
    x = 47,184.64

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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.