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Finding the Fourth Proportional to 58,710.50, 81,028.13 and 32,878.89

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Solution

The fourth proportional to 58,710.50, 81,028.13 and 32,878.89 is: 45,377.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,710.50 : 81,028.13 = 32,878.89 : x
  2. Step 2: Convert to fraction form
    58,710.50/81,028.13 = 32,878.89/x
  3. Step 3: Cross multiply
    58,710.50x = 81,028.13 × 32,878.89
  4. Step 4: Simplify right side
    58,710.50x = 2,664,114,403.64
  5. Step 5: Solve for x
    x = 2,664,114,403.64/58,710.50
  6. Step 6: Final answer
    x = 45,377.14

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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.