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Finding the Fourth Proportional to 8,998.64, 12,417.96 and 5,019.68

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Solution

The fourth proportional to 8,998.64, 12,417.96 and 5,019.68 is: 6,927.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,998.64 : 12,417.96 = 5,019.68 : x
  2. Step 2: Convert to fraction form
    8,998.64/12,417.96 = 5,019.68/x
  3. Step 3: Cross multiply
    8,998.64x = 12,417.96 × 5,019.68
  4. Step 4: Simplify right side
    8,998.64x = 62,334,185.45
  5. Step 5: Solve for x
    x = 62,334,185.45/8,998.64
  6. Step 6: Final answer
    x = 6,927.07

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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.