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Finding the Fourth Proportional to 13,752.91, 18,979.02 and 7,465.27

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Solution

The fourth proportional to 13,752.91, 18,979.02 and 7,465.27 is: 10,302.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.91 : 18,979.02 = 7,465.27 : x
  2. Step 2: Convert to fraction form
    13,752.91/18,979.02 = 7,465.27/x
  3. Step 3: Cross multiply
    13,752.91x = 18,979.02 × 7,465.27
  4. Step 4: Simplify right side
    13,752.91x = 141,683,508.64
  5. Step 5: Solve for x
    x = 141,683,508.64/13,752.91
  6. Step 6: Final answer
    x = 10,302.07

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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.