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Finding the Fourth Proportional to 38,357.51, 52,929.59 and 21,363.34

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Solution

The fourth proportional to 38,357.51, 52,929.59 and 21,363.34 is: 29,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,357.51 : 52,929.59 = 21,363.34 : x
  2. Step 2: Convert to fraction form
    38,357.51/52,929.59 = 21,363.34/x
  3. Step 3: Cross multiply
    38,357.51x = 52,929.59 × 21,363.34
  4. Step 4: Simplify right side
    38,357.51x = 1,130,752,852.74
  5. Step 5: Solve for x
    x = 1,130,752,852.74/38,357.51
  6. Step 6: Final answer
    x = 29,479.31

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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.