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Finding the Fourth Proportional to 58,720, 88,089.18 and 19,268.14

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Solution

The fourth proportional to 58,720, 88,089.18 and 19,268.14 is: 28,905.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,720 : 88,089.18 = 19,268.14 : x
  2. Step 2: Convert to fraction form
    58,720/88,089.18 = 19,268.14/x
  3. Step 3: Cross multiply
    58,720x = 88,089.18 × 19,268.14
  4. Step 4: Simplify right side
    58,720x = 1,697,314,652.73
  5. Step 5: Solve for x
    x = 1,697,314,652.73/58,720
  6. Step 6: Final answer
    x = 28,905.22

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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.