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Finding the Fourth Proportional to 38,159.58, 52,665.58 and 21,167.60

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Solution

The fourth proportional to 38,159.58, 52,665.58 and 21,167.60 is: 29,214.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,159.58 : 52,665.58 = 21,167.60 : x
  2. Step 2: Convert to fraction form
    38,159.58/52,665.58 = 21,167.60/x
  3. Step 3: Cross multiply
    38,159.58x = 52,665.58 × 21,167.60
  4. Step 4: Simplify right side
    38,159.58x = 1,114,803,931.21
  5. Step 5: Solve for x
    x = 1,114,803,931.21/38,159.58
  6. Step 6: Final answer
    x = 29,214.26

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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.