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Finding the Fourth Proportional to 8,925.52, 12,292.23 and 8,731.81

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Solution

The fourth proportional to 8,925.52, 12,292.23 and 8,731.81 is: 12,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,925.52 : 12,292.23 = 8,731.81 : x
  2. Step 2: Convert to fraction form
    8,925.52/12,292.23 = 8,731.81/x
  3. Step 3: Cross multiply
    8,925.52x = 12,292.23 × 8,731.81
  4. Step 4: Simplify right side
    8,925.52x = 107,333,416.84
  5. Step 5: Solve for x
    x = 107,333,416.84/8,925.52
  6. Step 6: Final answer
    x = 12,025.45

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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.