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Finding the Fourth Proportional to 9,483.71, 14,153.45 and 8,432.78

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Solution

The fourth proportional to 9,483.71, 14,153.45 and 8,432.78 is: 12,585.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,483.71 : 14,153.45 = 8,432.78 : x
  2. Step 2: Convert to fraction form
    9,483.71/14,153.45 = 8,432.78/x
  3. Step 3: Cross multiply
    9,483.71x = 14,153.45 × 8,432.78
  4. Step 4: Simplify right side
    9,483.71x = 119,352,817.16
  5. Step 5: Solve for x
    x = 119,352,817.16/9,483.71
  6. Step 6: Final answer
    x = 12,585.04

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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 (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.