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Finding the Fourth Proportional to 7,368.51, 10,168.70 and 4,011.51

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Solution

The fourth proportional to 7,368.51, 10,168.70 and 4,011.51 is: 5,535.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,368.51 : 10,168.70 = 4,011.51 : x
  2. Step 2: Convert to fraction form
    7,368.51/10,168.70 = 4,011.51/x
  3. Step 3: Cross multiply
    7,368.51x = 10,168.70 × 4,011.51
  4. Step 4: Simplify right side
    7,368.51x = 40,791,841.74
  5. Step 5: Solve for x
    x = 40,791,841.74/7,368.51
  6. Step 6: Final answer
    x = 5,535.97

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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.