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Finding the Fourth Proportional to 35,430.99, 53,143.24 and 10,806.99

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Solution

The fourth proportional to 35,430.99, 53,143.24 and 10,806.99 is: 16,209.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,430.99 : 53,143.24 = 10,806.99 : x
  2. Step 2: Convert to fraction form
    35,430.99/53,143.24 = 10,806.99/x
  3. Step 3: Cross multiply
    35,430.99x = 53,143.24 × 10,806.99
  4. Step 4: Simplify right side
    35,430.99x = 574,318,463.25
  5. Step 5: Solve for x
    x = 574,318,463.25/35,430.99
  6. Step 6: Final answer
    x = 16,209.50

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Similar ratio
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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.