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Finding the Fourth Proportional to 13,005.99, 17,948.27 and 7,037.64

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Solution

The fourth proportional to 13,005.99, 17,948.27 and 7,037.64 is: 9,711.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005.99 : 17,948.27 = 7,037.64 : x
  2. Step 2: Convert to fraction form
    13,005.99/17,948.27 = 7,037.64/x
  3. Step 3: Cross multiply
    13,005.99x = 17,948.27 × 7,037.64
  4. Step 4: Simplify right side
    13,005.99x = 126,313,480.48
  5. Step 5: Solve for x
    x = 126,313,480.48/13,005.99
  6. Step 6: Final answer
    x = 9,711.95

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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.