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Finding the Fourth Proportional to 55,018, 75,925.76 and 29,867.50

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Solution

The fourth proportional to 55,018, 75,925.76 and 29,867.50 is: 41,217.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,018 : 75,925.76 = 29,867.50 : x
  2. Step 2: Convert to fraction form
    55,018/75,925.76 = 29,867.50/x
  3. Step 3: Cross multiply
    55,018x = 75,925.76 × 29,867.50
  4. Step 4: Simplify right side
    55,018x = 2,267,712,636.80
  5. Step 5: Solve for x
    x = 2,267,712,636.80/55,018
  6. Step 6: Final answer
    x = 41,217.65

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.