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Finding the Fourth Proportional to 35,320.76, 48,742.98 and 19,405.54

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Solution

The fourth proportional to 35,320.76, 48,742.98 and 19,405.54 is: 26,779.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,320.76 : 48,742.98 = 19,405.54 : x
  2. Step 2: Convert to fraction form
    35,320.76/48,742.98 = 19,405.54/x
  3. Step 3: Cross multiply
    35,320.76x = 48,742.98 × 19,405.54
  4. Step 4: Simplify right side
    35,320.76x = 945,883,848.11
  5. Step 5: Solve for x
    x = 945,883,848.11/35,320.76
  6. Step 6: Final answer
    x = 26,779.83

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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.