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Finding the Fourth Proportional to 15,316.66, 22,981.52 and 8,654.07

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Solution

The fourth proportional to 15,316.66, 22,981.52 and 8,654.07 is: 12,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,316.66 : 22,981.52 = 8,654.07 : x
  2. Step 2: Convert to fraction form
    15,316.66/22,981.52 = 8,654.07/x
  3. Step 3: Cross multiply
    15,316.66x = 22,981.52 × 8,654.07
  4. Step 4: Simplify right side
    15,316.66x = 198,883,790.60
  5. Step 5: Solve for x
    x = 198,883,790.60/15,316.66
  6. Step 6: Final answer
    x = 12,984.80

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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.