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Finding the Fourth Proportional to 35,075.40, 48,400.90 and 21,650.98

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Solution

The fourth proportional to 35,075.40, 48,400.90 and 21,650.98 is: 29,876.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,075.40 : 48,400.90 = 21,650.98 : x
  2. Step 2: Convert to fraction form
    35,075.40/48,400.90 = 21,650.98/x
  3. Step 3: Cross multiply
    35,075.40x = 48,400.90 × 21,650.98
  4. Step 4: Simplify right side
    35,075.40x = 1,047,926,917.88
  5. Step 5: Solve for x
    x = 1,047,926,917.88/35,075.40
  6. Step 6: Final answer
    x = 29,876.41

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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.