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Finding the Fourth Proportional to 38,775.71, 53,510.99 and 37,434.64

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Solution

The fourth proportional to 38,775.71, 53,510.99 and 37,434.64 is: 51,660.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,775.71 : 53,510.99 = 37,434.64 : x
  2. Step 2: Convert to fraction form
    38,775.71/53,510.99 = 37,434.64/x
  3. Step 3: Cross multiply
    38,775.71x = 53,510.99 × 37,434.64
  4. Step 4: Simplify right side
    38,775.71x = 2,003,164,325.74
  5. Step 5: Solve for x
    x = 2,003,164,325.74/38,775.71
  6. Step 6: Final answer
    x = 51,660.29

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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.