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Finding the Fourth Proportional to 76,489.65, 114,695.07 and 34,333.59

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Solution

The fourth proportional to 76,489.65, 114,695.07 and 34,333.59 is: 51,482.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,489.65 : 114,695.07 = 34,333.59 : x
  2. Step 2: Convert to fraction form
    76,489.65/114,695.07 = 34,333.59/x
  3. Step 3: Cross multiply
    76,489.65x = 114,695.07 × 34,333.59
  4. Step 4: Simplify right side
    76,489.65x = 3,937,893,508.40
  5. Step 5: Solve for x
    x = 3,937,893,508.40/76,489.65
  6. Step 6: Final answer
    x = 51,482.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.