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Finding the Fourth Proportional to 37,687.80, 56,531.70 and 19,025.40

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Solution

The fourth proportional to 37,687.80, 56,531.70 and 19,025.40 is: 28,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,687.80 : 56,531.70 = 19,025.40 : x
  2. Step 2: Convert to fraction form
    37,687.80/56,531.70 = 19,025.40/x
  3. Step 3: Cross multiply
    37,687.80x = 56,531.70 × 19,025.40
  4. Step 4: Simplify right side
    37,687.80x = 1,075,538,205.18
  5. Step 5: Solve for x
    x = 1,075,538,205.18/37,687.80
  6. Step 6: Final answer
    x = 28,538.10

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1.5x scale

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.