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Finding the Fourth Proportional to 10,558.71, 15,838.06 and 4,859.10

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Solution

The fourth proportional to 10,558.71, 15,838.06 and 4,859.10 is: 7,288.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,558.71 : 15,838.06 = 4,859.10 : x
  2. Step 2: Convert to fraction form
    10,558.71/15,838.06 = 4,859.10/x
  3. Step 3: Cross multiply
    10,558.71x = 15,838.06 × 4,859.10
  4. Step 4: Simplify right side
    10,558.71x = 76,958,664.03
  5. Step 5: Solve for x
    x = 76,958,664.03/10,558.71
  6. Step 6: Final answer
    x = 7,288.64

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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.