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Finding the Fourth Proportional to 8,700.96, 13,035 and 4,316.04

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Solution

The fourth proportional to 8,700.96, 13,035 and 4,316.04 is: 6,465.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.96 : 13,035 = 4,316.04 : x
  2. Step 2: Convert to fraction form
    8,700.96/13,035 = 4,316.04/x
  3. Step 3: Cross multiply
    8,700.96x = 13,035 × 4,316.04
  4. Step 4: Simplify right side
    8,700.96x = 56,259,581.40
  5. Step 5: Solve for x
    x = 56,259,581.40/8,700.96
  6. Step 6: Final answer
    x = 6,465.91

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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.