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Finding the Fourth Proportional to 14,438.99, 21,657.03 and 7,048.55

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Solution

The fourth proportional to 14,438.99, 21,657.03 and 7,048.55 is: 10,572.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,438.99 : 21,657.03 = 7,048.55 : x
  2. Step 2: Convert to fraction form
    14,438.99/21,657.03 = 7,048.55/x
  3. Step 3: Cross multiply
    14,438.99x = 21,657.03 × 7,048.55
  4. Step 4: Simplify right side
    14,438.99x = 152,650,550.52
  5. Step 5: Solve for x
    x = 152,650,550.52/14,438.99
  6. Step 6: Final answer
    x = 10,572.11

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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.