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Finding the Fourth Proportional to 8,607.50, 11,875.30 and 5,625.06

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Solution

The fourth proportional to 8,607.50, 11,875.30 and 5,625.06 is: 7,760.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.50 : 11,875.30 = 5,625.06 : x
  2. Step 2: Convert to fraction form
    8,607.50/11,875.30 = 5,625.06/x
  3. Step 3: Cross multiply
    8,607.50x = 11,875.30 × 5,625.06
  4. Step 4: Simplify right side
    8,607.50x = 66,799,275.02
  5. Step 5: Solve for x
    x = 66,799,275.02/8,607.50
  6. Step 6: Final answer
    x = 7,760.59

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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.