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Finding the Fourth Proportional to 38,333.90, 52,900.74 and 21,566.90

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Solution

The fourth proportional to 38,333.90, 52,900.74 and 21,566.90 is: 29,762.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,333.90 : 52,900.74 = 21,566.90 : x
  2. Step 2: Convert to fraction form
    38,333.90/52,900.74 = 21,566.90/x
  3. Step 3: Cross multiply
    38,333.90x = 52,900.74 × 21,566.90
  4. Step 4: Simplify right side
    38,333.90x = 1,140,904,969.51
  5. Step 5: Solve for x
    x = 1,140,904,969.51/38,333.90
  6. Step 6: Final answer
    x = 29,762.30

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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.