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Finding the Fourth Proportional to 9,948.21, 14,889.51 and 8,854.71

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Solution

The fourth proportional to 9,948.21, 14,889.51 and 8,854.71 is: 13,252.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,948.21 : 14,889.51 = 8,854.71 : x
  2. Step 2: Convert to fraction form
    9,948.21/14,889.51 = 8,854.71/x
  3. Step 3: Cross multiply
    9,948.21x = 14,889.51 × 8,854.71
  4. Step 4: Simplify right side
    9,948.21x = 131,842,293.09
  5. Step 5: Solve for x
    x = 131,842,293.09/9,948.21
  6. Step 6: Final answer
    x = 13,252.87

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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.