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Finding the Fourth Proportional to 10,281.60, 15,429.60 and 6,592.80

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Solution

The fourth proportional to 10,281.60, 15,429.60 and 6,592.80 is: 9,893.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,281.60 : 15,429.60 = 6,592.80 : x
  2. Step 2: Convert to fraction form
    10,281.60/15,429.60 = 6,592.80/x
  3. Step 3: Cross multiply
    10,281.60x = 15,429.60 × 6,592.80
  4. Step 4: Simplify right side
    10,281.60x = 101,724,266.88
  5. Step 5: Solve for x
    x = 101,724,266.88/10,281.60
  6. Step 6: Final answer
    x = 9,893.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.