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Finding the Fourth Proportional to 52,457.66, 72,390.62 and 28,584.50

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Solution

The fourth proportional to 52,457.66, 72,390.62 and 28,584.50 is: 39,446.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,457.66 : 72,390.62 = 28,584.50 : x
  2. Step 2: Convert to fraction form
    52,457.66/72,390.62 = 28,584.50/x
  3. Step 3: Cross multiply
    52,457.66x = 72,390.62 × 28,584.50
  4. Step 4: Simplify right side
    52,457.66x = 2,069,249,677.39
  5. Step 5: Solve for x
    x = 2,069,249,677.39/52,457.66
  6. Step 6: Final answer
    x = 39,446.09

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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.