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Finding the Fourth Proportional to 67,690.86, 101,547.81 and 33,972.95

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Solution

The fourth proportional to 67,690.86, 101,547.81 and 33,972.95 is: 50,965.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,690.86 : 101,547.81 = 33,972.95 : x
  2. Step 2: Convert to fraction form
    67,690.86/101,547.81 = 33,972.95/x
  3. Step 3: Cross multiply
    67,690.86x = 101,547.81 × 33,972.95
  4. Step 4: Simplify right side
    67,690.86x = 3,449,878,925.61
  5. Step 5: Solve for x
    x = 3,449,878,925.61/67,690.86
  6. Step 6: Final answer
    x = 50,965.21

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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.