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Finding the Fourth Proportional to 56,754.80, 85,132.65 and 17,312.30

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Solution

The fourth proportional to 56,754.80, 85,132.65 and 17,312.30 is: 25,968.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,754.80 : 85,132.65 = 17,312.30 : x
  2. Step 2: Convert to fraction form
    56,754.80/85,132.65 = 17,312.30/x
  3. Step 3: Cross multiply
    56,754.80x = 85,132.65 × 17,312.30
  4. Step 4: Simplify right side
    56,754.80x = 1,473,841,976.60
  5. Step 5: Solve for x
    x = 1,473,841,976.60/56,754.80
  6. Step 6: Final answer
    x = 25,968.59

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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.