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Finding the Fourth Proportional to 72,364.96, 99,866.82 and 45,497.26

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Solution

The fourth proportional to 72,364.96, 99,866.82 and 45,497.26 is: 62,788.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,364.96 : 99,866.82 = 45,497.26 : x
  2. Step 2: Convert to fraction form
    72,364.96/99,866.82 = 45,497.26/x
  3. Step 3: Cross multiply
    72,364.96x = 99,866.82 × 45,497.26
  4. Step 4: Simplify right side
    72,364.96x = 4,543,666,674.91
  5. Step 5: Solve for x
    x = 4,543,666,674.91/72,364.96
  6. Step 6: Final answer
    x = 62,788.22

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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.