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Finding the Fourth Proportional to 8,953.99, 13,452.65 and 7,904.23

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Solution

The fourth proportional to 8,953.99, 13,452.65 and 7,904.23 is: 11,875.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.99 : 13,452.65 = 7,904.23 : x
  2. Step 2: Convert to fraction form
    8,953.99/13,452.65 = 7,904.23/x
  3. Step 3: Cross multiply
    8,953.99x = 13,452.65 × 7,904.23
  4. Step 4: Simplify right side
    8,953.99x = 106,332,839.71
  5. Step 5: Solve for x
    x = 106,332,839.71/8,953.99
  6. Step 6: Final answer
    x = 11,875.47

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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.