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Finding the Fourth Proportional to 52,291.01, 72,162.05 and 28,417.68

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Solution

The fourth proportional to 52,291.01, 72,162.05 and 28,417.68 is: 39,216.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,291.01 : 72,162.05 = 28,417.68 : x
  2. Step 2: Convert to fraction form
    52,291.01/72,162.05 = 28,417.68/x
  3. Step 3: Cross multiply
    52,291.01x = 72,162.05 × 28,417.68
  4. Step 4: Simplify right side
    52,291.01x = 2,050,677,902.96
  5. Step 5: Solve for x
    x = 2,050,677,902.96/52,291.01
  6. Step 6: Final answer
    x = 39,216.64

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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.