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Finding the Fourth Proportional to 70,009.55, 96,584.95 and 40,521.88

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Solution

The fourth proportional to 70,009.55, 96,584.95 and 40,521.88 is: 55,903.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,009.55 : 96,584.95 = 40,521.88 : x
  2. Step 2: Convert to fraction form
    70,009.55/96,584.95 = 40,521.88/x
  3. Step 3: Cross multiply
    70,009.55x = 96,584.95 × 40,521.88
  4. Step 4: Simplify right side
    70,009.55x = 3,913,803,551.10
  5. Step 5: Solve for x
    x = 3,913,803,551.10/70,009.55
  6. Step 6: Final answer
    x = 55,903.85

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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.