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Finding the Fourth Proportional to 38,060, 52,522.80 and 21,293

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Solution

The fourth proportional to 38,060, 52,522.80 and 21,293 is: 29,384.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,060 : 52,522.80 = 21,293 : x
  2. Step 2: Convert to fraction form
    38,060/52,522.80 = 21,293/x
  3. Step 3: Cross multiply
    38,060x = 52,522.80 × 21,293
  4. Step 4: Simplify right side
    38,060x = 1,118,367,980.40
  5. Step 5: Solve for x
    x = 1,118,367,980.40/38,060
  6. Step 6: Final answer
    x = 29,384.34

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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.