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Finding the Fourth Proportional to 74,596.39, 102,945.17 and 40,607.08

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Solution

The fourth proportional to 74,596.39, 102,945.17 and 40,607.08 is: 56,038.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,596.39 : 102,945.17 = 40,607.08 : x
  2. Step 2: Convert to fraction form
    74,596.39/102,945.17 = 40,607.08/x
  3. Step 3: Cross multiply
    74,596.39x = 102,945.17 × 40,607.08
  4. Step 4: Simplify right side
    74,596.39x = 4,180,302,597.96
  5. Step 5: Solve for x
    x = 4,180,302,597.96/74,596.39
  6. Step 6: Final answer
    x = 56,038.94

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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.