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Finding the Fourth Proportional to 15,710.55, 23,573.51 and 7,391.40

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Solution

The fourth proportional to 15,710.55, 23,573.51 and 7,391.40 is: 11,090.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,710.55 : 23,573.51 = 7,391.40 : x
  2. Step 2: Convert to fraction form
    15,710.55/23,573.51 = 7,391.40/x
  3. Step 3: Cross multiply
    15,710.55x = 23,573.51 × 7,391.40
  4. Step 4: Simplify right side
    15,710.55x = 174,241,204.86
  5. Step 5: Solve for x
    x = 174,241,204.86/15,710.55
  6. Step 6: Final answer
    x = 11,090.71

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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.