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Finding the Fourth Proportional to 10,809.12, 14,916.59 and 5,841.12

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Solution

The fourth proportional to 10,809.12, 14,916.59 and 5,841.12 is: 8,060.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,809.12 : 14,916.59 = 5,841.12 : x
  2. Step 2: Convert to fraction form
    10,809.12/14,916.59 = 5,841.12/x
  3. Step 3: Cross multiply
    10,809.12x = 14,916.59 × 5,841.12
  4. Step 4: Simplify right side
    10,809.12x = 87,129,592.18
  5. Step 5: Solve for x
    x = 87,129,592.18/10,809.12
  6. Step 6: Final answer
    x = 8,060.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.