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Finding the Fourth Proportional to 19,762.74, 29,599.58 and 13,865.90

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Solution

The fourth proportional to 19,762.74, 29,599.58 and 13,865.90 is: 20,767.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,762.74 : 29,599.58 = 13,865.90 : x
  2. Step 2: Convert to fraction form
    19,762.74/29,599.58 = 13,865.90/x
  3. Step 3: Cross multiply
    19,762.74x = 29,599.58 × 13,865.90
  4. Step 4: Simplify right side
    19,762.74x = 410,424,598.99
  5. Step 5: Solve for x
    x = 410,424,598.99/19,762.74
  6. Step 6: Final answer
    x = 20,767.60

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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.