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Finding the Fourth Proportional to 11,394.20, 17,075.30 and 9,058.20

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Solution

The fourth proportional to 11,394.20, 17,075.30 and 9,058.20 is: 13,574.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,394.20 : 17,075.30 = 9,058.20 : x
  2. Step 2: Convert to fraction form
    11,394.20/17,075.30 = 9,058.20/x
  3. Step 3: Cross multiply
    11,394.20x = 17,075.30 × 9,058.20
  4. Step 4: Simplify right side
    11,394.20x = 154,671,482.46
  5. Step 5: Solve for x
    x = 154,671,482.46/11,394.20
  6. Step 6: Final answer
    x = 13,574.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.