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Finding the Fourth Proportional to 8,840.90, 12,200.74 and 4,862.32

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Solution

The fourth proportional to 8,840.90, 12,200.74 and 4,862.32 is: 6,710.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,840.90 : 12,200.74 = 4,862.32 : x
  2. Step 2: Convert to fraction form
    8,840.90/12,200.74 = 4,862.32/x
  3. Step 3: Cross multiply
    8,840.90x = 12,200.74 × 4,862.32
  4. Step 4: Simplify right side
    8,840.90x = 59,323,859.46
  5. Step 5: Solve for x
    x = 59,323,859.46/8,840.90
  6. Step 6: Final answer
    x = 6,710.16

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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.