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Finding the Fourth Proportional to 92,012.48, 138,018.55 and 28,837.44

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Solution

The fourth proportional to 92,012.48, 138,018.55 and 28,837.44 is: 43,256.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,012.48 : 138,018.55 = 28,837.44 : x
  2. Step 2: Convert to fraction form
    92,012.48/138,018.55 = 28,837.44/x
  3. Step 3: Cross multiply
    92,012.48x = 138,018.55 × 28,837.44
  4. Step 4: Simplify right side
    92,012.48x = 3,980,101,654.51
  5. Step 5: Solve for x
    x = 3,980,101,654.51/92,012.48
  6. Step 6: Final answer
    x = 43,256.11

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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.