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Finding the Fourth Proportional to 22,386.80, 33,580.20 and 6,802.40

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Solution

The fourth proportional to 22,386.80, 33,580.20 and 6,802.40 is: 10,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,386.80 : 33,580.20 = 6,802.40 : x
  2. Step 2: Convert to fraction form
    22,386.80/33,580.20 = 6,802.40/x
  3. Step 3: Cross multiply
    22,386.80x = 33,580.20 × 6,802.40
  4. Step 4: Simplify right side
    22,386.80x = 228,425,952.48
  5. Step 5: Solve for x
    x = 228,425,952.48/22,386.80
  6. Step 6: Final answer
    x = 10,203.60

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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.