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Finding the Fourth Proportional to 72,295.52, 99,829.36 and 45,482.88

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Solution

The fourth proportional to 72,295.52, 99,829.36 and 45,482.88 is: 62,805.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,295.52 : 99,829.36 = 45,482.88 : x
  2. Step 2: Convert to fraction form
    72,295.52/99,829.36 = 45,482.88/x
  3. Step 3: Cross multiply
    72,295.52x = 99,829.36 × 45,482.88
  4. Step 4: Simplify right side
    72,295.52x = 4,540,526,801.36
  5. Step 5: Solve for x
    x = 4,540,526,801.36/72,295.52
  6. Step 6: Final answer
    x = 62,805.09

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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.