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Finding the Fourth Proportional to 13,075.98, 18,044.80 and 7,411.80

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Solution

The fourth proportional to 13,075.98, 18,044.80 and 7,411.80 is: 10,228.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,075.98 : 18,044.80 = 7,411.80 : x
  2. Step 2: Convert to fraction form
    13,075.98/18,044.80 = 7,411.80/x
  3. Step 3: Cross multiply
    13,075.98x = 18,044.80 × 7,411.80
  4. Step 4: Simplify right side
    13,075.98x = 133,744,448.64
  5. Step 5: Solve for x
    x = 133,744,448.64/13,075.98
  6. Step 6: Final answer
    x = 10,228.25

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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.