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Finding the Fourth Proportional to 14,572.89, 20,113.89 and 10,319.52

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Solution

The fourth proportional to 14,572.89, 20,113.89 and 10,319.52 is: 14,243.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,572.89 : 20,113.89 = 10,319.52 : x
  2. Step 2: Convert to fraction form
    14,572.89/20,113.89 = 10,319.52/x
  3. Step 3: Cross multiply
    14,572.89x = 20,113.89 × 10,319.52
  4. Step 4: Simplify right side
    14,572.89x = 207,565,690.13
  5. Step 5: Solve for x
    x = 207,565,690.13/14,572.89
  6. Step 6: Final answer
    x = 14,243.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.