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Finding the Fourth Proportional to 67,451.88, 92,931.70 and 47,014.76

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Solution

The fourth proportional to 67,451.88, 92,931.70 and 47,014.76 is: 64,774.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,451.88 : 92,931.70 = 47,014.76 : x
  2. Step 2: Convert to fraction form
    67,451.88/92,931.70 = 47,014.76/x
  3. Step 3: Cross multiply
    67,451.88x = 92,931.70 × 47,014.76
  4. Step 4: Simplify right side
    67,451.88x = 4,369,161,571.89
  5. Step 5: Solve for x
    x = 4,369,161,571.89/67,451.88
  6. Step 6: Final answer
    x = 64,774.50

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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.