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Finding the Fourth Proportional to 72,482.48, 100,026.53 and 40,650.69

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Solution

The fourth proportional to 72,482.48, 100,026.53 and 40,650.69 is: 56,098.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,482.48 : 100,026.53 = 40,650.69 : x
  2. Step 2: Convert to fraction form
    72,482.48/100,026.53 = 40,650.69/x
  3. Step 3: Cross multiply
    72,482.48x = 100,026.53 × 40,650.69
  4. Step 4: Simplify right side
    72,482.48x = 4,066,147,259.55
  5. Step 5: Solve for x
    x = 4,066,147,259.55/72,482.48
  6. Step 6: Final answer
    x = 56,098.35

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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.