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Finding the Fourth Proportional to 63,525.80, 87,627.12 and 42,015.44

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Solution

The fourth proportional to 63,525.80, 87,627.12 and 42,015.44 is: 57,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,525.80 : 87,627.12 = 42,015.44 : x
  2. Step 2: Convert to fraction form
    63,525.80/87,627.12 = 42,015.44/x
  3. Step 3: Cross multiply
    63,525.80x = 87,627.12 × 42,015.44
  4. Step 4: Simplify right side
    63,525.80x = 3,681,692,064.24
  5. Step 5: Solve for x
    x = 3,681,692,064.24/63,525.80
  6. Step 6: Final answer
    x = 57,955.85

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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.