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Finding the Fourth Proportional to 72,307.52, 99,753.92 and 48,441.92

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Solution

The fourth proportional to 72,307.52, 99,753.92 and 48,441.92 is: 66,829.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,307.52 : 99,753.92 = 48,441.92 : x
  2. Step 2: Convert to fraction form
    72,307.52/99,753.92 = 48,441.92/x
  3. Step 3: Cross multiply
    72,307.52x = 99,753.92 × 48,441.92
  4. Step 4: Simplify right side
    72,307.52x = 4,832,271,412.33
  5. Step 5: Solve for x
    x = 4,832,271,412.33/72,307.52
  6. Step 6: Final answer
    x = 66,829.44

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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.