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Finding the Fourth Proportional to 13,018.97, 17,966.08 and 7,050.50

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Solution

The fourth proportional to 13,018.97, 17,966.08 and 7,050.50 is: 9,729.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.97 : 17,966.08 = 7,050.50 : x
  2. Step 2: Convert to fraction form
    13,018.97/17,966.08 = 7,050.50/x
  3. Step 3: Cross multiply
    13,018.97x = 17,966.08 × 7,050.50
  4. Step 4: Simplify right side
    13,018.97x = 126,669,802.12
  5. Step 5: Solve for x
    x = 126,669,802.12/13,018.97
  6. Step 6: Final answer
    x = 9,729.64

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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.