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Finding the Fourth Proportional to 60,509.77, 83,416.92 and 40,359.30

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Solution

The fourth proportional to 60,509.77, 83,416.92 and 40,359.30 is: 55,638.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,509.77 : 83,416.92 = 40,359.30 : x
  2. Step 2: Convert to fraction form
    60,509.77/83,416.92 = 40,359.30/x
  3. Step 3: Cross multiply
    60,509.77x = 83,416.92 × 40,359.30
  4. Step 4: Simplify right side
    60,509.77x = 3,366,648,499.36
  5. Step 5: Solve for x
    x = 3,366,648,499.36/60,509.77
  6. Step 6: Final answer
    x = 55,638.10

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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.