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Finding the Fourth Proportional to 38,646.54, 53,333.07 and 21,652.02

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Solution

The fourth proportional to 38,646.54, 53,333.07 and 21,652.02 is: 29,880.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,646.54 : 53,333.07 = 21,652.02 : x
  2. Step 2: Convert to fraction form
    38,646.54/53,333.07 = 21,652.02/x
  3. Step 3: Cross multiply
    38,646.54x = 53,333.07 × 21,652.02
  4. Step 4: Simplify right side
    38,646.54x = 1,154,768,698.30
  5. Step 5: Solve for x
    x = 1,154,768,698.30/38,646.54
  6. Step 6: Final answer
    x = 29,880.26

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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.