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Finding the Fourth Proportional to 70,384.76, 97,130.99 and 38,554.80

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Solution

The fourth proportional to 70,384.76, 97,130.99 and 38,554.80 is: 53,205.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,384.76 : 97,130.99 = 38,554.80 : x
  2. Step 2: Convert to fraction form
    70,384.76/97,130.99 = 38,554.80/x
  3. Step 3: Cross multiply
    70,384.76x = 97,130.99 × 38,554.80
  4. Step 4: Simplify right side
    70,384.76x = 3,744,865,893.25
  5. Step 5: Solve for x
    x = 3,744,865,893.25/70,384.76
  6. Step 6: Final answer
    x = 53,205.64

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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.