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Finding the Fourth Proportional to 8,598.50, 12,898.90 and 3,403.16

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Solution

The fourth proportional to 8,598.50, 12,898.90 and 3,403.16 is: 5,105.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,598.50 : 12,898.90 = 3,403.16 : x
  2. Step 2: Convert to fraction form
    8,598.50/12,898.90 = 3,403.16/x
  3. Step 3: Cross multiply
    8,598.50x = 12,898.90 × 3,403.16
  4. Step 4: Simplify right side
    8,598.50x = 43,896,989.51
  5. Step 5: Solve for x
    x = 43,896,989.51/8,598.50
  6. Step 6: Final answer
    x = 5,105.19

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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.