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Finding the Fourth Proportional to 70,570.92, 97,388.28 and 38,740.08

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Solution

The fourth proportional to 70,570.92, 97,388.28 and 38,740.08 is: 53,461.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,570.92 : 97,388.28 = 38,740.08 : x
  2. Step 2: Convert to fraction form
    70,570.92/97,388.28 = 38,740.08/x
  3. Step 3: Cross multiply
    70,570.92x = 97,388.28 × 38,740.08
  4. Step 4: Simplify right side
    70,570.92x = 3,772,829,758.26
  5. Step 5: Solve for x
    x = 3,772,829,758.26/70,570.92
  6. Step 6: Final answer
    x = 53,461.54

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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.