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Finding the Fourth Proportional to 66,307.52, 99,446.84 and 21,923.76

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Solution

The fourth proportional to 66,307.52, 99,446.84 and 21,923.76 is: 32,880.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,307.52 : 99,446.84 = 21,923.76 : x
  2. Step 2: Convert to fraction form
    66,307.52/99,446.84 = 21,923.76/x
  3. Step 3: Cross multiply
    66,307.52x = 99,446.84 × 21,923.76
  4. Step 4: Simplify right side
    66,307.52x = 2,180,248,652.92
  5. Step 5: Solve for x
    x = 2,180,248,652.92/66,307.52
  6. Step 6: Final answer
    x = 32,880.87

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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.