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Finding the Fourth Proportional to 14,586.10, 21,879.15 and 6,810.10

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Solution

The fourth proportional to 14,586.10, 21,879.15 and 6,810.10 is: 10,215.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,586.10 : 21,879.15 = 6,810.10 : x
  2. Step 2: Convert to fraction form
    14,586.10/21,879.15 = 6,810.10/x
  3. Step 3: Cross multiply
    14,586.10x = 21,879.15 × 6,810.10
  4. Step 4: Simplify right side
    14,586.10x = 148,999,199.42
  5. Step 5: Solve for x
    x = 148,999,199.42/14,586.10
  6. Step 6: Final answer
    x = 10,215.15

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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.