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Finding the Fourth Proportional to 1,374.98, 1,895.25 and 1,075.70

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Solution

The fourth proportional to 1,374.98, 1,895.25 and 1,075.70 is: 1,482.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.98 : 1,895.25 = 1,075.70 : x
  2. Step 2: Convert to fraction form
    1,374.98/1,895.25 = 1,075.70/x
  3. Step 3: Cross multiply
    1,374.98x = 1,895.25 × 1,075.70
  4. Step 4: Simplify right side
    1,374.98x = 2,038,710.95
  5. Step 5: Solve for x
    x = 2,038,710.95/1,374.98
  6. Step 6: Final answer
    x = 1,482.73

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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.