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Finding the Fourth Proportional to 18,335.76, 27,503.64 and 6,648.98

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Solution

The fourth proportional to 18,335.76, 27,503.64 and 6,648.98 is: 9,973.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,335.76 : 27,503.64 = 6,648.98 : x
  2. Step 2: Convert to fraction form
    18,335.76/27,503.64 = 6,648.98/x
  3. Step 3: Cross multiply
    18,335.76x = 27,503.64 × 6,648.98
  4. Step 4: Simplify right side
    18,335.76x = 182,871,152.29
  5. Step 5: Solve for x
    x = 182,871,152.29/18,335.76
  6. Step 6: Final answer
    x = 9,973.47

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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.