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Finding the Fourth Proportional to 8,700.58, 13,052.64 and 3,702.94

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Solution

The fourth proportional to 8,700.58, 13,052.64 and 3,702.94 is: 5,555.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.58 : 13,052.64 = 3,702.94 : x
  2. Step 2: Convert to fraction form
    8,700.58/13,052.64 = 3,702.94/x
  3. Step 3: Cross multiply
    8,700.58x = 13,052.64 × 3,702.94
  4. Step 4: Simplify right side
    8,700.58x = 48,333,142.76
  5. Step 5: Solve for x
    x = 48,333,142.76/8,700.58
  6. Step 6: Final answer
    x = 5,555.16

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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.