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Finding the Fourth Proportional to 67,656.86, 93,343.71 and 39,339.26

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Solution

The fourth proportional to 67,656.86, 93,343.71 and 39,339.26 is: 54,274.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,656.86 : 93,343.71 = 39,339.26 : x
  2. Step 2: Convert to fraction form
    67,656.86/93,343.71 = 39,339.26/x
  3. Step 3: Cross multiply
    67,656.86x = 93,343.71 × 39,339.26
  4. Step 4: Simplify right side
    67,656.86x = 3,672,072,477.05
  5. Step 5: Solve for x
    x = 3,672,072,477.05/67,656.86
  6. Step 6: Final answer
    x = 54,274.95

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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.