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Finding the Fourth Proportional to 3,503.84, 4,835.30 and 1,931.92

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Solution

The fourth proportional to 3,503.84, 4,835.30 and 1,931.92 is: 2,666.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,503.84 : 4,835.30 = 1,931.92 : x
  2. Step 2: Convert to fraction form
    3,503.84/4,835.30 = 1,931.92/x
  3. Step 3: Cross multiply
    3,503.84x = 4,835.30 × 1,931.92
  4. Step 4: Simplify right side
    3,503.84x = 9,341,391.03
  5. Step 5: Solve for x
    x = 9,341,391.03/3,503.84
  6. Step 6: Final answer
    x = 2,666.05

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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.