Home / 57,215.70-85,823.55-17,784.90

Finding the Fourth Proportional to 57,215.70, 85,823.55 and 17,784.90

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Solution

The fourth proportional to 57,215.70, 85,823.55 and 17,784.90 is: 26,677.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,215.70 : 85,823.55 = 17,784.90 : x
  2. Step 2: Convert to fraction form
    57,215.70/85,823.55 = 17,784.90/x
  3. Step 3: Cross multiply
    57,215.70x = 85,823.55 × 17,784.90
  4. Step 4: Simplify right side
    57,215.70x = 1,526,363,254.40
  5. Step 5: Solve for x
    x = 1,526,363,254.40/57,215.70
  6. Step 6: Final answer
    x = 26,677.35

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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.