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Finding the Fourth Proportional to 7,368.80, 11,053.20 and 4,744.40

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Solution

The fourth proportional to 7,368.80, 11,053.20 and 4,744.40 is: 7,116.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368.80 : 11,053.20 = 4,744.40 : x
  2. Step 2: Convert to fraction form
    7,368.80/11,053.20 = 4,744.40/x
  3. Step 3: Cross multiply
    7,368.80x = 11,053.20 × 4,744.40
  4. Step 4: Simplify right side
    7,368.80x = 52,440,802.08
  5. Step 5: Solve for x
    x = 52,440,802.08/7,368.80
  6. Step 6: Final answer
    x = 7,116.60

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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.