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Finding the Fourth Proportional to 92,812.32, 139,221.21 and 22,691.63

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Solution

The fourth proportional to 92,812.32, 139,221.21 and 22,691.63 is: 34,038.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,812.32 : 139,221.21 = 22,691.63 : x
  2. Step 2: Convert to fraction form
    92,812.32/139,221.21 = 22,691.63/x
  3. Step 3: Cross multiply
    92,812.32x = 139,221.21 × 22,691.63
  4. Step 4: Simplify right side
    92,812.32x = 3,159,155,489.37
  5. Step 5: Solve for x
    x = 3,159,155,489.37/92,812.32
  6. Step 6: Final answer
    x = 34,038.10

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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.