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Finding the Fourth Proportional to 65,950.52, 90,961.51 and 56,767.71

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Solution

The fourth proportional to 65,950.52, 90,961.51 and 56,767.71 is: 78,296.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,950.52 : 90,961.51 = 56,767.71 : x
  2. Step 2: Convert to fraction form
    65,950.52/90,961.51 = 56,767.71/x
  3. Step 3: Cross multiply
    65,950.52x = 90,961.51 × 56,767.71
  4. Step 4: Simplify right side
    65,950.52x = 5,163,676,337.00
  5. Step 5: Solve for x
    x = 5,163,676,337.00/65,950.52
  6. Step 6: Final answer
    x = 78,296.22

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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.