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Finding the Fourth Proportional to 5,303.66, 7,916.72 and 4,918.19

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Solution

The fourth proportional to 5,303.66, 7,916.72 and 4,918.19 is: 7,341.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,303.66 : 7,916.72 = 4,918.19 : x
  2. Step 2: Convert to fraction form
    5,303.66/7,916.72 = 4,918.19/x
  3. Step 3: Cross multiply
    5,303.66x = 7,916.72 × 4,918.19
  4. Step 4: Simplify right side
    5,303.66x = 38,935,952.93
  5. Step 5: Solve for x
    x = 38,935,952.93/5,303.66
  6. Step 6: Final answer
    x = 7,341.33

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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.