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Finding the Fourth Proportional to 38,356, 52,955.52 and 29,386.84

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Solution

The fourth proportional to 38,356, 52,955.52 and 29,386.84 is: 40,572.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,356 : 52,955.52 = 29,386.84 : x
  2. Step 2: Convert to fraction form
    38,356/52,955.52 = 29,386.84/x
  3. Step 3: Cross multiply
    38,356x = 52,955.52 × 29,386.84
  4. Step 4: Simplify right side
    38,356x = 1,556,195,393.36
  5. Step 5: Solve for x
    x = 1,556,195,393.36/38,356
  6. Step 6: Final answer
    x = 40,572.41

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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.