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Finding the Fourth Proportional to 70,225.51, 96,911.30 and 40,009.51

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Solution

The fourth proportional to 70,225.51, 96,911.30 and 40,009.51 is: 55,213.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,225.51 : 96,911.30 = 40,009.51 : x
  2. Step 2: Convert to fraction form
    70,225.51/96,911.30 = 40,009.51/x
  3. Step 3: Cross multiply
    70,225.51x = 96,911.30 × 40,009.51
  4. Step 4: Simplify right side
    70,225.51x = 3,877,373,626.46
  5. Step 5: Solve for x
    x = 3,877,373,626.46/70,225.51
  6. Step 6: Final answer
    x = 55,213.18

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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.