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Finding the Fourth Proportional to 98,796.64, 148,209.54 and 28,666.84

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Solution

The fourth proportional to 98,796.64, 148,209.54 and 28,666.84 is: 43,004.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,796.64 : 148,209.54 = 28,666.84 : x
  2. Step 2: Convert to fraction form
    98,796.64/148,209.54 = 28,666.84/x
  3. Step 3: Cross multiply
    98,796.64x = 148,209.54 × 28,666.84
  4. Step 4: Simplify right side
    98,796.64x = 4,248,699,169.65
  5. Step 5: Solve for x
    x = 4,248,699,169.65/98,796.64
  6. Step 6: Final answer
    x = 43,004.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.