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Finding the Fourth Proportional to 7,405.16, 10,218.14 and 4,756.16

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Solution

The fourth proportional to 7,405.16, 10,218.14 and 4,756.16 is: 6,562.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,405.16 : 10,218.14 = 4,756.16 : x
  2. Step 2: Convert to fraction form
    7,405.16/10,218.14 = 4,756.16/x
  3. Step 3: Cross multiply
    7,405.16x = 10,218.14 × 4,756.16
  4. Step 4: Simplify right side
    7,405.16x = 48,599,108.74
  5. Step 5: Solve for x
    x = 48,599,108.74/7,405.16
  6. Step 6: Final answer
    x = 6,562.87

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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.