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Finding the Fourth Proportional to 57,238.80, 85,864.60 and 17,795.60

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Solution

The fourth proportional to 57,238.80, 85,864.60 and 17,795.60 is: 26,695.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,238.80 : 85,864.60 = 17,795.60 : x
  2. Step 2: Convert to fraction form
    57,238.80/85,864.60 = 17,795.60/x
  3. Step 3: Cross multiply
    57,238.80x = 85,864.60 × 17,795.60
  4. Step 4: Simplify right side
    57,238.80x = 1,528,012,075.76
  5. Step 5: Solve for x
    x = 1,528,012,075.76/57,238.80
  6. Step 6: Final answer
    x = 26,695.39

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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.