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Finding the Fourth Proportional to 21,641.16, 32,461.98 and 7,600.60

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Solution

The fourth proportional to 21,641.16, 32,461.98 and 7,600.60 is: 11,400.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,641.16 : 32,461.98 = 7,600.60 : x
  2. Step 2: Convert to fraction form
    21,641.16/32,461.98 = 7,600.60/x
  3. Step 3: Cross multiply
    21,641.16x = 32,461.98 × 7,600.60
  4. Step 4: Simplify right side
    21,641.16x = 246,730,525.19
  5. Step 5: Solve for x
    x = 246,730,525.19/21,641.16
  6. Step 6: Final answer
    x = 11,400.98

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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.