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Finding the Fourth Proportional to 92,066.79, 138,100.32 and 28,025.49

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Solution

The fourth proportional to 92,066.79, 138,100.32 and 28,025.49 is: 42,038.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,066.79 : 138,100.32 = 28,025.49 : x
  2. Step 2: Convert to fraction form
    92,066.79/138,100.32 = 28,025.49/x
  3. Step 3: Cross multiply
    92,066.79x = 138,100.32 × 28,025.49
  4. Step 4: Simplify right side
    92,066.79x = 3,870,329,137.16
  5. Step 5: Solve for x
    x = 3,870,329,137.16/92,066.79
  6. Step 6: Final answer
    x = 42,038.28

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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.