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Finding the Fourth Proportional to 63,811.40, 88,035.93 and 63,712.98

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Solution

The fourth proportional to 63,811.40, 88,035.93 and 63,712.98 is: 87,900.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,811.40 : 88,035.93 = 63,712.98 : x
  2. Step 2: Convert to fraction form
    63,811.40/88,035.93 = 63,712.98/x
  3. Step 3: Cross multiply
    63,811.40x = 88,035.93 × 63,712.98
  4. Step 4: Simplify right side
    63,811.40x = 5,609,031,447.37
  5. Step 5: Solve for x
    x = 5,609,031,447.37/63,811.40
  6. Step 6: Final answer
    x = 87,900.15

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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.