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Finding the Fourth Proportional to 34,409.80, 51,614.70 and 11,038.60

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Solution

The fourth proportional to 34,409.80, 51,614.70 and 11,038.60 is: 16,557.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,409.80 : 51,614.70 = 11,038.60 : x
  2. Step 2: Convert to fraction form
    34,409.80/51,614.70 = 11,038.60/x
  3. Step 3: Cross multiply
    34,409.80x = 51,614.70 × 11,038.60
  4. Step 4: Simplify right side
    34,409.80x = 569,754,027.42
  5. Step 5: Solve for x
    x = 569,754,027.42/34,409.80
  6. Step 6: Final answer
    x = 16,557.90

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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.