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Finding the Fourth Proportional to 30,075.88, 45,118.14 and 9,301

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Solution

The fourth proportional to 30,075.88, 45,118.14 and 9,301 is: 13,952.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,075.88 : 45,118.14 = 9,301 : x
  2. Step 2: Convert to fraction form
    30,075.88/45,118.14 = 9,301/x
  3. Step 3: Cross multiply
    30,075.88x = 45,118.14 × 9,301
  4. Step 4: Simplify right side
    30,075.88x = 419,643,820.14
  5. Step 5: Solve for x
    x = 419,643,820.14/30,075.88
  6. Step 6: Final answer
    x = 13,952.84

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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.