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Finding the Fourth Proportional to 8,931.87, 12,324.65 and 4,953.01

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Solution

The fourth proportional to 8,931.87, 12,324.65 and 4,953.01 is: 6,834.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.87 : 12,324.65 = 4,953.01 : x
  2. Step 2: Convert to fraction form
    8,931.87/12,324.65 = 4,953.01/x
  3. Step 3: Cross multiply
    8,931.87x = 12,324.65 × 4,953.01
  4. Step 4: Simplify right side
    8,931.87x = 61,044,114.70
  5. Step 5: Solve for x
    x = 61,044,114.70/8,931.87
  6. Step 6: Final answer
    x = 6,834.42

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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.