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Finding the Fourth Proportional to 38,516.70, 53,123.72 and 33,148.08

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Solution

The fourth proportional to 38,516.70, 53,123.72 and 33,148.08 is: 45,719.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,516.70 : 53,123.72 = 33,148.08 : x
  2. Step 2: Convert to fraction form
    38,516.70/53,123.72 = 33,148.08/x
  3. Step 3: Cross multiply
    38,516.70x = 53,123.72 × 33,148.08
  4. Step 4: Simplify right side
    38,516.70x = 1,760,949,320.46
  5. Step 5: Solve for x
    x = 1,760,949,320.46/38,516.70
  6. Step 6: Final answer
    x = 45,719.11

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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.