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Finding the Fourth Proportional to 70,153.80, 96,814.32 and 38,323.22

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Solution

The fourth proportional to 70,153.80, 96,814.32 and 38,323.22 is: 52,887.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,153.80 : 96,814.32 = 38,323.22 : x
  2. Step 2: Convert to fraction form
    70,153.80/96,814.32 = 38,323.22/x
  3. Step 3: Cross multiply
    70,153.80x = 96,814.32 × 38,323.22
  4. Step 4: Simplify right side
    70,153.80x = 3,710,236,484.51
  5. Step 5: Solve for x
    x = 3,710,236,484.51/70,153.80
  6. Step 6: Final answer
    x = 52,887.18

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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.