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Finding the Fourth Proportional to 5,607.50, 8,411.22 and 4,885.79

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Solution

The fourth proportional to 5,607.50, 8,411.22 and 4,885.79 is: 7,328.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,607.50 : 8,411.22 = 4,885.79 : x
  2. Step 2: Convert to fraction form
    5,607.50/8,411.22 = 4,885.79/x
  3. Step 3: Cross multiply
    5,607.50x = 8,411.22 × 4,885.79
  4. Step 4: Simplify right side
    5,607.50x = 41,095,412.51
  5. Step 5: Solve for x
    x = 41,095,412.51/5,607.50
  6. Step 6: Final answer
    x = 7,328.66

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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.