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Finding the Fourth Proportional to 66,691.84, 99,927 and 46,928.92

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Solution

The fourth proportional to 66,691.84, 99,927 and 46,928.92 is: 70,315.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,691.84 : 99,927 = 46,928.92 : x
  2. Step 2: Convert to fraction form
    66,691.84/99,927 = 46,928.92/x
  3. Step 3: Cross multiply
    66,691.84x = 99,927 × 46,928.92
  4. Step 4: Simplify right side
    66,691.84x = 4,689,466,188.84
  5. Step 5: Solve for x
    x = 4,689,466,188.84/66,691.84
  6. Step 6: Final answer
    x = 70,315.44

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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.