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Finding the Fourth Proportional to 70,535.64, 97,335.84 and 38,703.84

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Solution

The fourth proportional to 70,535.64, 97,335.84 and 38,703.84 is: 53,409.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,535.64 : 97,335.84 = 38,703.84 : x
  2. Step 2: Convert to fraction form
    70,535.64/97,335.84 = 38,703.84/x
  3. Step 3: Cross multiply
    70,535.64x = 97,335.84 × 38,703.84
  4. Step 4: Simplify right side
    70,535.64x = 3,767,270,777.63
  5. Step 5: Solve for x
    x = 3,767,270,777.63/70,535.64
  6. Step 6: Final answer
    x = 53,409.46

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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.