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Finding the Fourth Proportional to 8,785.59, 13,157.06 and 4,830.81

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Solution

The fourth proportional to 8,785.59, 13,157.06 and 4,830.81 is: 7,234.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.59 : 13,157.06 = 4,830.81 : x
  2. Step 2: Convert to fraction form
    8,785.59/13,157.06 = 4,830.81/x
  3. Step 3: Cross multiply
    8,785.59x = 13,157.06 × 4,830.81
  4. Step 4: Simplify right side
    8,785.59x = 63,559,232.86
  5. Step 5: Solve for x
    x = 63,559,232.86/8,785.59
  6. Step 6: Final answer
    x = 7,234.49

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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.