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Finding the Fourth Proportional to 10,588.80, 15,883.20 and 10,435.20

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Solution

The fourth proportional to 10,588.80, 15,883.20 and 10,435.20 is: 15,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,588.80 : 15,883.20 = 10,435.20 : x
  2. Step 2: Convert to fraction form
    10,588.80/15,883.20 = 10,435.20/x
  3. Step 3: Cross multiply
    10,588.80x = 15,883.20 × 10,435.20
  4. Step 4: Simplify right side
    10,588.80x = 165,744,368.64
  5. Step 5: Solve for x
    x = 165,744,368.64/10,588.80
  6. Step 6: Final answer
    x = 15,652.80

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Similar ratio
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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.