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Finding the Fourth Proportional to 67,754.94, 93,508.74 and 39,075.72

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Solution

The fourth proportional to 67,754.94, 93,508.74 and 39,075.72 is: 53,928.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,754.94 : 93,508.74 = 39,075.72 : x
  2. Step 2: Convert to fraction form
    67,754.94/93,508.74 = 39,075.72/x
  3. Step 3: Cross multiply
    67,754.94x = 93,508.74 × 39,075.72
  4. Step 4: Simplify right side
    67,754.94x = 3,653,921,341.79
  5. Step 5: Solve for x
    x = 3,653,921,341.79/67,754.94
  6. Step 6: Final answer
    x = 53,928.49

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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.