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Finding the Fourth Proportional to 6,313.16, 9,421.08 and 5,545.28

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Solution

The fourth proportional to 6,313.16, 9,421.08 and 5,545.28 is: 8,275.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,313.16 : 9,421.08 = 5,545.28 : x
  2. Step 2: Convert to fraction form
    6,313.16/9,421.08 = 5,545.28/x
  3. Step 3: Cross multiply
    6,313.16x = 9,421.08 × 5,545.28
  4. Step 4: Simplify right side
    6,313.16x = 52,242,479.40
  5. Step 5: Solve for x
    x = 52,242,479.40/6,313.16
  6. Step 6: Final answer
    x = 8,275.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.