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Finding the Fourth Proportional to 5,701.15, 7,873.02 and 5,390.53

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Solution

The fourth proportional to 5,701.15, 7,873.02 and 5,390.53 is: 7,444.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,701.15 : 7,873.02 = 5,390.53 : x
  2. Step 2: Convert to fraction form
    5,701.15/7,873.02 = 5,390.53/x
  3. Step 3: Cross multiply
    5,701.15x = 7,873.02 × 5,390.53
  4. Step 4: Simplify right side
    5,701.15x = 42,439,750.50
  5. Step 5: Solve for x
    x = 42,439,750.50/5,701.15
  6. Step 6: Final answer
    x = 7,444.07

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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.