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Finding the Fourth Proportional to 9,966.71, 14,953.52 and 4,423.94

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Solution

The fourth proportional to 9,966.71, 14,953.52 and 4,423.94 is: 6,637.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,966.71 : 14,953.52 = 4,423.94 : x
  2. Step 2: Convert to fraction form
    9,966.71/14,953.52 = 4,423.94/x
  3. Step 3: Cross multiply
    9,966.71x = 14,953.52 × 4,423.94
  4. Step 4: Simplify right side
    9,966.71x = 66,153,475.27
  5. Step 5: Solve for x
    x = 66,153,475.27/9,966.71
  6. Step 6: Final answer
    x = 6,637.44

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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.