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Finding the Fourth Proportional to 5,718.24, 8,572.76 and 5,256.92

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Solution

The fourth proportional to 5,718.24, 8,572.76 and 5,256.92 is: 7,881.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,718.24 : 8,572.76 = 5,256.92 : x
  2. Step 2: Convert to fraction form
    5,718.24/8,572.76 = 5,256.92/x
  3. Step 3: Cross multiply
    5,718.24x = 8,572.76 × 5,256.92
  4. Step 4: Simplify right side
    5,718.24x = 45,066,313.50
  5. Step 5: Solve for x
    x = 45,066,313.50/5,718.24
  6. Step 6: Final answer
    x = 7,881.15

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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.