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Finding the Fourth Proportional to 58,985.84, 81,401.90 and 32,129.79

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Solution

The fourth proportional to 58,985.84, 81,401.90 and 32,129.79 is: 44,339.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,985.84 : 81,401.90 = 32,129.79 : x
  2. Step 2: Convert to fraction form
    58,985.84/81,401.90 = 32,129.79/x
  3. Step 3: Cross multiply
    58,985.84x = 81,401.90 × 32,129.79
  4. Step 4: Simplify right side
    58,985.84x = 2,615,425,791.95
  5. Step 5: Solve for x
    x = 2,615,425,791.95/58,985.84
  6. Step 6: Final answer
    x = 44,339.90

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1.5x scale

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.