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Finding the Fourth Proportional to 68,632.99, 94,715.13 and 38,417.56

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Solution

The fourth proportional to 68,632.99, 94,715.13 and 38,417.56 is: 53,017.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,632.99 : 94,715.13 = 38,417.56 : x
  2. Step 2: Convert to fraction form
    68,632.99/94,715.13 = 38,417.56/x
  3. Step 3: Cross multiply
    68,632.99x = 94,715.13 × 38,417.56
  4. Step 4: Simplify right side
    68,632.99x = 3,638,724,189.68
  5. Step 5: Solve for x
    x = 3,638,724,189.68/68,632.99
  6. Step 6: Final answer
    x = 53,017.13

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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.