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Finding the Fourth Proportional to 8,894.48, 12,270.30 and 5,751.68

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Solution

The fourth proportional to 8,894.48, 12,270.30 and 5,751.68 is: 7,934.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,894.48 : 12,270.30 = 5,751.68 : x
  2. Step 2: Convert to fraction form
    8,894.48/12,270.30 = 5,751.68/x
  3. Step 3: Cross multiply
    8,894.48x = 12,270.30 × 5,751.68
  4. Step 4: Simplify right side
    8,894.48x = 70,574,839.10
  5. Step 5: Solve for x
    x = 70,574,839.10/8,894.48
  6. Step 6: Final answer
    x = 7,934.68

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1.5x scale

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.