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Finding the Fourth Proportional to 29,068.94, 43,607.97 and 12,429.06

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Solution

The fourth proportional to 29,068.94, 43,607.97 and 12,429.06 is: 18,645.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,068.94 : 43,607.97 = 12,429.06 : x
  2. Step 2: Convert to fraction form
    29,068.94/43,607.97 = 12,429.06/x
  3. Step 3: Cross multiply
    29,068.94x = 43,607.97 × 12,429.06
  4. Step 4: Simplify right side
    29,068.94x = 542,006,075.61
  5. Step 5: Solve for x
    x = 542,006,075.61/29,068.94
  6. Step 6: Final answer
    x = 18,645.54

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1.5x scale

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.