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Finding the Fourth Proportional to 8,953.64, 13,416.78 and 3,756.68

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Solution

The fourth proportional to 8,953.64, 13,416.78 and 3,756.68 is: 5,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.64 : 13,416.78 = 3,756.68 : x
  2. Step 2: Convert to fraction form
    8,953.64/13,416.78 = 3,756.68/x
  3. Step 3: Cross multiply
    8,953.64x = 13,416.78 × 3,756.68
  4. Step 4: Simplify right side
    8,953.64x = 50,402,549.09
  5. Step 5: Solve for x
    x = 50,402,549.09/8,953.64
  6. Step 6: Final answer
    x = 5,629.28

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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.