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Finding the Fourth Proportional to 19,603.28, 29,404.92 and 5,752.40

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Solution

The fourth proportional to 19,603.28, 29,404.92 and 5,752.40 is: 8,628.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,603.28 : 29,404.92 = 5,752.40 : x
  2. Step 2: Convert to fraction form
    19,603.28/29,404.92 = 5,752.40/x
  3. Step 3: Cross multiply
    19,603.28x = 29,404.92 × 5,752.40
  4. Step 4: Simplify right side
    19,603.28x = 169,148,861.81
  5. Step 5: Solve for x
    x = 169,148,861.81/19,603.28
  6. Step 6: Final answer
    x = 8,628.60

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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.