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Finding the Fourth Proportional to 8,931.43, 12,326.07 and 4,953.32

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Solution

The fourth proportional to 8,931.43, 12,326.07 and 4,953.32 is: 6,835.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.43 : 12,326.07 = 4,953.32 : x
  2. Step 2: Convert to fraction form
    8,931.43/12,326.07 = 4,953.32/x
  3. Step 3: Cross multiply
    8,931.43x = 12,326.07 × 4,953.32
  4. Step 4: Simplify right side
    8,931.43x = 61,054,969.05
  5. Step 5: Solve for x
    x = 61,054,969.05/8,931.43
  6. Step 6: Final answer
    x = 6,835.97

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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.