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Finding the Fourth Proportional to 13,763.19, 18,999.02 and 9,293.00

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Solution

The fourth proportional to 13,763.19, 18,999.02 and 9,293.00 is: 12,828.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763.19 : 18,999.02 = 9,293.00 : x
  2. Step 2: Convert to fraction form
    13,763.19/18,999.02 = 9,293.00/x
  3. Step 3: Cross multiply
    13,763.19x = 18,999.02 × 9,293.00
  4. Step 4: Simplify right side
    13,763.19x = 176,557,751.40
  5. Step 5: Solve for x
    x = 176,557,751.40/13,763.19
  6. Step 6: Final answer
    x = 12,828.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.