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Finding the Fourth Proportional to 67,063.52, 92,550.16 and 40,210.40

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Solution

The fourth proportional to 67,063.52, 92,550.16 and 40,210.40 is: 55,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,063.52 : 92,550.16 = 40,210.40 : x
  2. Step 2: Convert to fraction form
    67,063.52/92,550.16 = 40,210.40/x
  3. Step 3: Cross multiply
    67,063.52x = 92,550.16 × 40,210.40
  4. Step 4: Simplify right side
    67,063.52x = 3,721,478,953.66
  5. Step 5: Solve for x
    x = 3,721,478,953.66/67,063.52
  6. Step 6: Final answer
    x = 55,491.85

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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.