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Finding the Fourth Proportional to 62,206.40, 85,856.82 and 40,984.40

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Solution

The fourth proportional to 62,206.40, 85,856.82 and 40,984.40 is: 56,566.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,206.40 : 85,856.82 = 40,984.40 : x
  2. Step 2: Convert to fraction form
    62,206.40/85,856.82 = 40,984.40/x
  3. Step 3: Cross multiply
    62,206.40x = 85,856.82 × 40,984.40
  4. Step 4: Simplify right side
    62,206.40x = 3,518,790,253.61
  5. Step 5: Solve for x
    x = 3,518,790,253.61/62,206.40
  6. Step 6: Final answer
    x = 56,566.37

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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.