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Finding the Fourth Proportional to 8,580.84, 12,859.56 and 4,834.40

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Solution

The fourth proportional to 8,580.84, 12,859.56 and 4,834.40 is: 7,245.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,580.84 : 12,859.56 = 4,834.40 : x
  2. Step 2: Convert to fraction form
    8,580.84/12,859.56 = 4,834.40/x
  3. Step 3: Cross multiply
    8,580.84x = 12,859.56 × 4,834.40
  4. Step 4: Simplify right side
    8,580.84x = 62,168,256.86
  5. Step 5: Solve for x
    x = 62,168,256.86/8,580.84
  6. Step 6: Final answer
    x = 7,245.01

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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.