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Finding the Fourth Proportional to 28,031.51, 42,052.44 and 8,040.16

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Solution

The fourth proportional to 28,031.51, 42,052.44 and 8,040.16 is: 12,061.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,031.51 : 42,052.44 = 8,040.16 : x
  2. Step 2: Convert to fraction form
    28,031.51/42,052.44 = 8,040.16/x
  3. Step 3: Cross multiply
    28,031.51x = 42,052.44 × 8,040.16
  4. Step 4: Simplify right side
    28,031.51x = 338,108,345.99
  5. Step 5: Solve for x
    x = 338,108,345.99/28,031.51
  6. Step 6: Final answer
    x = 12,061.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.