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Finding the Fourth Proportional to 60,678.79, 83,697.64 and 40,260.41

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Solution

The fourth proportional to 60,678.79, 83,697.64 and 40,260.41 is: 55,533.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,678.79 : 83,697.64 = 40,260.41 : x
  2. Step 2: Convert to fraction form
    60,678.79/83,697.64 = 40,260.41/x
  3. Step 3: Cross multiply
    60,678.79x = 83,697.64 × 40,260.41
  4. Step 4: Simplify right side
    60,678.79x = 3,369,701,302.43
  5. Step 5: Solve for x
    x = 3,369,701,302.43/60,678.79
  6. Step 6: Final answer
    x = 55,533.43

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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.