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Finding the Fourth Proportional to 7,758.71, 10,707.08 and 4,401.53

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Solution

The fourth proportional to 7,758.71, 10,707.08 and 4,401.53 is: 6,074.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,758.71 : 10,707.08 = 4,401.53 : x
  2. Step 2: Convert to fraction form
    7,758.71/10,707.08 = 4,401.53/x
  3. Step 3: Cross multiply
    7,758.71x = 10,707.08 × 4,401.53
  4. Step 4: Simplify right side
    7,758.71x = 47,127,533.83
  5. Step 5: Solve for x
    x = 47,127,533.83/7,758.71
  6. Step 6: Final answer
    x = 6,074.15

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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.