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Finding the Fourth Proportional to 8,479.01, 11,700.63 and 4,702.34

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Solution

The fourth proportional to 8,479.01, 11,700.63 and 4,702.34 is: 6,489.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.01 : 11,700.63 = 4,702.34 : x
  2. Step 2: Convert to fraction form
    8,479.01/11,700.63 = 4,702.34/x
  3. Step 3: Cross multiply
    8,479.01x = 11,700.63 × 4,702.34
  4. Step 4: Simplify right side
    8,479.01x = 55,020,281.97
  5. Step 5: Solve for x
    x = 55,020,281.97/8,479.01
  6. Step 6: Final answer
    x = 6,489.00

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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.