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Finding the Fourth Proportional to 14,703.90, 22,019.40 and 9,430.80

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Solution

The fourth proportional to 14,703.90, 22,019.40 and 9,430.80 is: 14,122.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,703.90 : 22,019.40 = 9,430.80 : x
  2. Step 2: Convert to fraction form
    14,703.90/22,019.40 = 9,430.80/x
  3. Step 3: Cross multiply
    14,703.90x = 22,019.40 × 9,430.80
  4. Step 4: Simplify right side
    14,703.90x = 207,660,557.52
  5. Step 5: Solve for x
    x = 207,660,557.52/14,703.90
  6. Step 6: Final answer
    x = 14,122.82

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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.