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Finding the Fourth Proportional to 10,609.84, 14,641.68 and 5,894.20

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Solution

The fourth proportional to 10,609.84, 14,641.68 and 5,894.20 is: 8,134.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,609.84 : 14,641.68 = 5,894.20 : x
  2. Step 2: Convert to fraction form
    10,609.84/14,641.68 = 5,894.20/x
  3. Step 3: Cross multiply
    10,609.84x = 14,641.68 × 5,894.20
  4. Step 4: Simplify right side
    10,609.84x = 86,300,990.26
  5. Step 5: Solve for x
    x = 86,300,990.26/10,609.84
  6. Step 6: Final answer
    x = 8,134.05

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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.