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Finding the Fourth Proportional to 84,602.88, 126,950.40 and 47,669.76

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Solution

The fourth proportional to 84,602.88, 126,950.40 and 47,669.76 is: 71,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,602.88 : 126,950.40 = 47,669.76 : x
  2. Step 2: Convert to fraction form
    84,602.88/126,950.40 = 47,669.76/x
  3. Step 3: Cross multiply
    84,602.88x = 126,950.40 × 47,669.76
  4. Step 4: Simplify right side
    84,602.88x = 6,051,695,099.90
  5. Step 5: Solve for x
    x = 6,051,695,099.90/84,602.88
  6. Step 6: Final answer
    x = 71,530.60

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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.