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Finding the Fourth Proportional to 8,339.84, 11,509.76 and 4,615.04

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Solution

The fourth proportional to 8,339.84, 11,509.76 and 4,615.04 is: 6,369.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,339.84 : 11,509.76 = 4,615.04 : x
  2. Step 2: Convert to fraction form
    8,339.84/11,509.76 = 4,615.04/x
  3. Step 3: Cross multiply
    8,339.84x = 11,509.76 × 4,615.04
  4. Step 4: Simplify right side
    8,339.84x = 53,118,002.79
  5. Step 5: Solve for x
    x = 53,118,002.79/8,339.84
  6. Step 6: Final answer
    x = 6,369.19

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Half scale
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Double scale
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Similar ratio
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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.