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Finding the Fourth Proportional to 57,026, 85,539.30 and 15,473

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Solution

The fourth proportional to 57,026, 85,539.30 and 15,473 is: 23,209.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,026 : 85,539.30 = 15,473 : x
  2. Step 2: Convert to fraction form
    57,026/85,539.30 = 15,473/x
  3. Step 3: Cross multiply
    57,026x = 85,539.30 × 15,473
  4. Step 4: Simplify right side
    57,026x = 1,323,549,588.90
  5. Step 5: Solve for x
    x = 1,323,549,588.90/57,026
  6. Step 6: Final answer
    x = 23,209.58

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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.