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Finding the Fourth Proportional to 68,683.19, 94,689.74 and 58,718.67

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Solution

The fourth proportional to 68,683.19, 94,689.74 and 58,718.67 is: 80,952.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,683.19 : 94,689.74 = 58,718.67 : x
  2. Step 2: Convert to fraction form
    68,683.19/94,689.74 = 58,718.67/x
  3. Step 3: Cross multiply
    68,683.19x = 94,689.74 × 58,718.67
  4. Step 4: Simplify right side
    68,683.19x = 5,560,055,595.45
  5. Step 5: Solve for x
    x = 5,560,055,595.45/68,683.19
  6. Step 6: Final answer
    x = 80,952.20

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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.