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Finding the Fourth Proportional to 43,695.70, 65,545.00 and 12,106.08

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Solution

The fourth proportional to 43,695.70, 65,545.00 and 12,106.08 is: 18,159.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,695.70 : 65,545.00 = 12,106.08 : x
  2. Step 2: Convert to fraction form
    43,695.70/65,545.00 = 12,106.08/x
  3. Step 3: Cross multiply
    43,695.70x = 65,545.00 × 12,106.08
  4. Step 4: Simplify right side
    43,695.70x = 793,492,737.54
  5. Step 5: Solve for x
    x = 793,492,737.54/43,695.70
  6. Step 6: Final answer
    x = 18,159.52

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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.