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Finding the Fourth Proportional to 30,848.99, 46,291.98 and 13,318.80

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Solution

The fourth proportional to 30,848.99, 46,291.98 and 13,318.80 is: 19,986.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,848.99 : 46,291.98 = 13,318.80 : x
  2. Step 2: Convert to fraction form
    30,848.99/46,291.98 = 13,318.80/x
  3. Step 3: Cross multiply
    30,848.99x = 46,291.98 × 13,318.80
  4. Step 4: Simplify right side
    30,848.99x = 616,553,623.22
  5. Step 5: Solve for x
    x = 616,553,623.22/30,848.99
  6. Step 6: Final answer
    x = 19,986.19

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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.