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Finding the Fourth Proportional to 37,495.84, 51,742.72 and 20,728.48

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Solution

The fourth proportional to 37,495.84, 51,742.72 and 20,728.48 is: 28,604.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,495.84 : 51,742.72 = 20,728.48 : x
  2. Step 2: Convert to fraction form
    37,495.84/51,742.72 = 20,728.48/x
  3. Step 3: Cross multiply
    37,495.84x = 51,742.72 × 20,728.48
  4. Step 4: Simplify right side
    37,495.84x = 1,072,547,936.67
  5. Step 5: Solve for x
    x = 1,072,547,936.67/37,495.84
  6. Step 6: Final answer
    x = 28,604.45

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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.