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Finding the Fourth Proportional to 15,573.40, 23,408.70 and 15,281.80

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Solution

The fourth proportional to 15,573.40, 23,408.70 and 15,281.80 is: 22,970.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,573.40 : 23,408.70 = 15,281.80 : x
  2. Step 2: Convert to fraction form
    15,573.40/23,408.70 = 15,281.80/x
  3. Step 3: Cross multiply
    15,573.40x = 23,408.70 × 15,281.80
  4. Step 4: Simplify right side
    15,573.40x = 357,727,071.66
  5. Step 5: Solve for x
    x = 357,727,071.66/15,573.40
  6. Step 6: Final answer
    x = 22,970.39

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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.