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Finding the Fourth Proportional to 7,030.77, 10,515.15 and 6,256.20

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Solution

The fourth proportional to 7,030.77, 10,515.15 and 6,256.20 is: 9,356.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,030.77 : 10,515.15 = 6,256.20 : x
  2. Step 2: Convert to fraction form
    7,030.77/10,515.15 = 6,256.20/x
  3. Step 3: Cross multiply
    7,030.77x = 10,515.15 × 6,256.20
  4. Step 4: Simplify right side
    7,030.77x = 65,784,881.43
  5. Step 5: Solve for x
    x = 65,784,881.43/7,030.77
  6. Step 6: Final answer
    x = 9,356.71

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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.