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Finding the Fourth Proportional to 13,043.87, 17,995.63 and 9,649.01

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Solution

The fourth proportional to 13,043.87, 17,995.63 and 9,649.01 is: 13,312.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,043.87 : 17,995.63 = 9,649.01 : x
  2. Step 2: Convert to fraction form
    13,043.87/17,995.63 = 9,649.01/x
  3. Step 3: Cross multiply
    13,043.87x = 17,995.63 × 9,649.01
  4. Step 4: Simplify right side
    13,043.87x = 173,640,013.83
  5. Step 5: Solve for x
    x = 173,640,013.83/13,043.87
  6. Step 6: Final answer
    x = 13,312.00

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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.