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Finding the Fourth Proportional to 68,646.02, 94,733.10 and 38,430.56

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Solution

The fourth proportional to 68,646.02, 94,733.10 and 38,430.56 is: 53,035.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,646.02 : 94,733.10 = 38,430.56 : x
  2. Step 2: Convert to fraction form
    68,646.02/94,733.10 = 38,430.56/x
  3. Step 3: Cross multiply
    68,646.02x = 94,733.10 × 38,430.56
  4. Step 4: Simplify right side
    68,646.02x = 3,640,646,083.54
  5. Step 5: Solve for x
    x = 3,640,646,083.54/68,646.02
  6. Step 6: Final answer
    x = 53,035.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.