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Finding the Fourth Proportional to 10,595.60, 15,871.80 and 5,404.40

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Solution

The fourth proportional to 10,595.60, 15,871.80 and 5,404.40 is: 8,095.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,595.60 : 15,871.80 = 5,404.40 : x
  2. Step 2: Convert to fraction form
    10,595.60/15,871.80 = 5,404.40/x
  3. Step 3: Cross multiply
    10,595.60x = 15,871.80 × 5,404.40
  4. Step 4: Simplify right side
    10,595.60x = 85,777,555.92
  5. Step 5: Solve for x
    x = 85,777,555.92/10,595.60
  6. Step 6: Final answer
    x = 8,095.58

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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.