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Finding the Fourth Proportional to 69,281.63, 95,626.61 and 45,148.76

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Solution

The fourth proportional to 69,281.63, 95,626.61 and 45,148.76 is: 62,316.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,281.63 : 95,626.61 = 45,148.76 : x
  2. Step 2: Convert to fraction form
    69,281.63/95,626.61 = 45,148.76/x
  3. Step 3: Cross multiply
    69,281.63x = 95,626.61 × 45,148.76
  4. Step 4: Simplify right side
    69,281.63x = 4,317,422,864.50
  5. Step 5: Solve for x
    x = 4,317,422,864.50/69,281.63
  6. Step 6: Final answer
    x = 62,316.99

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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.