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Finding the Fourth Proportional to 8,931.96, 12,326.06 and 4,953.66

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Solution

The fourth proportional to 8,931.96, 12,326.06 and 4,953.66 is: 6,836.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,931.96 : 12,326.06 = 4,953.66 : x
  2. Step 2: Convert to fraction form
    8,931.96/12,326.06 = 4,953.66/x
  3. Step 3: Cross multiply
    8,931.96x = 12,326.06 × 4,953.66
  4. Step 4: Simplify right side
    8,931.96x = 61,059,085.61
  5. Step 5: Solve for x
    x = 61,059,085.61/8,931.96
  6. Step 6: Final answer
    x = 6,836.02

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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.