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Finding the Fourth Proportional to 8,755.64, 12,085.08 and 4,981.02

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Solution

The fourth proportional to 8,755.64, 12,085.08 and 4,981.02 is: 6,875.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.64 : 12,085.08 = 4,981.02 : x
  2. Step 2: Convert to fraction form
    8,755.64/12,085.08 = 4,981.02/x
  3. Step 3: Cross multiply
    8,755.64x = 12,085.08 × 4,981.02
  4. Step 4: Simplify right side
    8,755.64x = 60,196,025.18
  5. Step 5: Solve for x
    x = 60,196,025.18/8,755.64
  6. Step 6: Final answer
    x = 6,875.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.