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Finding the Fourth Proportional to 9,828.30, 14,730.84 and 9,718.68

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Solution

The fourth proportional to 9,828.30, 14,730.84 and 9,718.68 is: 14,566.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,828.30 : 14,730.84 = 9,718.68 : x
  2. Step 2: Convert to fraction form
    9,828.30/14,730.84 = 9,718.68/x
  3. Step 3: Cross multiply
    9,828.30x = 14,730.84 × 9,718.68
  4. Step 4: Simplify right side
    9,828.30x = 143,164,320.09
  5. Step 5: Solve for x
    x = 143,164,320.09/9,828.30
  6. Step 6: Final answer
    x = 14,566.54

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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.