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Finding the Fourth Proportional to 7,123.06, 9,826.26 and 4,607.32

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Solution

The fourth proportional to 7,123.06, 9,826.26 and 4,607.32 is: 6,355.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,123.06 : 9,826.26 = 4,607.32 : x
  2. Step 2: Convert to fraction form
    7,123.06/9,826.26 = 4,607.32/x
  3. Step 3: Cross multiply
    7,123.06x = 9,826.26 × 4,607.32
  4. Step 4: Simplify right side
    7,123.06x = 45,272,724.22
  5. Step 5: Solve for x
    x = 45,272,724.22/7,123.06
  6. Step 6: Final answer
    x = 6,355.80

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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.