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Finding the Fourth Proportional to 28,656.82, 42,985.08 and 15,592.24

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Solution

The fourth proportional to 28,656.82, 42,985.08 and 15,592.24 is: 23,388.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,656.82 : 42,985.08 = 15,592.24 : x
  2. Step 2: Convert to fraction form
    28,656.82/42,985.08 = 15,592.24/x
  3. Step 3: Cross multiply
    28,656.82x = 42,985.08 × 15,592.24
  4. Step 4: Simplify right side
    28,656.82x = 670,233,683.78
  5. Step 5: Solve for x
    x = 670,233,683.78/28,656.82
  6. Step 6: Final answer
    x = 23,388.28

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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.