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Finding the Fourth Proportional to 8,809.48, 12,156.64 and 4,981.02

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Solution

The fourth proportional to 8,809.48, 12,156.64 and 4,981.02 is: 6,873.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.48 : 12,156.64 = 4,981.02 : x
  2. Step 2: Convert to fraction form
    8,809.48/12,156.64 = 4,981.02/x
  3. Step 3: Cross multiply
    8,809.48x = 12,156.64 × 4,981.02
  4. Step 4: Simplify right side
    8,809.48x = 60,552,427.61
  5. Step 5: Solve for x
    x = 60,552,427.61/8,809.48
  6. Step 6: Final answer
    x = 6,873.55

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1.5x scale

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.