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Finding the Fourth Proportional to 14,379.12, 21,570.80 and 7,363.10

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Solution

The fourth proportional to 14,379.12, 21,570.80 and 7,363.10 is: 11,045.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,379.12 : 21,570.80 = 7,363.10 : x
  2. Step 2: Convert to fraction form
    14,379.12/21,570.80 = 7,363.10/x
  3. Step 3: Cross multiply
    14,379.12x = 21,570.80 × 7,363.10
  4. Step 4: Simplify right side
    14,379.12x = 158,827,812.81
  5. Step 5: Solve for x
    x = 158,827,812.81/14,379.12
  6. Step 6: Final answer
    x = 11,045.73

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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.