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Finding the Fourth Proportional to 15,725.80, 23,607.90 and 15,610.60

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Solution

The fourth proportional to 15,725.80, 23,607.90 and 15,610.60 is: 23,434.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,725.80 : 23,607.90 = 15,610.60 : x
  2. Step 2: Convert to fraction form
    15,725.80/23,607.90 = 15,610.60/x
  3. Step 3: Cross multiply
    15,725.80x = 23,607.90 × 15,610.60
  4. Step 4: Simplify right side
    15,725.80x = 368,533,483.74
  5. Step 5: Solve for x
    x = 368,533,483.74/15,725.80
  6. Step 6: Final answer
    x = 23,434.96

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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.