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Finding the Fourth Proportional to 58,682.61, 88,030.74 and 21,260.30

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Solution

The fourth proportional to 58,682.61, 88,030.74 and 21,260.30 is: 31,892.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,682.61 : 88,030.74 = 21,260.30 : x
  2. Step 2: Convert to fraction form
    58,682.61/88,030.74 = 21,260.30/x
  3. Step 3: Cross multiply
    58,682.61x = 88,030.74 × 21,260.30
  4. Step 4: Simplify right side
    58,682.61x = 1,871,559,941.62
  5. Step 5: Solve for x
    x = 1,871,559,941.62/58,682.61
  6. Step 6: Final answer
    x = 31,892.92

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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.