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Finding the Fourth Proportional to 32,616.72, 45,011.28 and 17,712.72

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Solution

The fourth proportional to 32,616.72, 45,011.28 and 17,712.72 is: 24,443.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,616.72 : 45,011.28 = 17,712.72 : x
  2. Step 2: Convert to fraction form
    32,616.72/45,011.28 = 17,712.72/x
  3. Step 3: Cross multiply
    32,616.72x = 45,011.28 × 17,712.72
  4. Step 4: Simplify right side
    32,616.72x = 797,272,199.48
  5. Step 5: Solve for x
    x = 797,272,199.48/32,616.72
  6. Step 6: Final answer
    x = 24,443.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.