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Finding the Fourth Proportional to 72,854.94, 100,526.47 and 40,588.73

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Solution

The fourth proportional to 72,854.94, 100,526.47 and 40,588.73 is: 56,005.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,854.94 : 100,526.47 = 40,588.73 : x
  2. Step 2: Convert to fraction form
    72,854.94/100,526.47 = 40,588.73/x
  3. Step 3: Cross multiply
    72,854.94x = 100,526.47 × 40,588.73
  4. Step 4: Simplify right side
    72,854.94x = 4,080,241,521.55
  5. Step 5: Solve for x
    x = 4,080,241,521.55/72,854.94
  6. Step 6: Final answer
    x = 56,005.01

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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.