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Finding the Fourth Proportional to 70,412.88, 97,166.88 and 38,580.96

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Solution

The fourth proportional to 70,412.88, 97,166.88 and 38,580.96 is: 53,240.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,412.88 : 97,166.88 = 38,580.96 : x
  2. Step 2: Convert to fraction form
    70,412.88/97,166.88 = 38,580.96/x
  3. Step 3: Cross multiply
    70,412.88x = 97,166.88 × 38,580.96
  4. Step 4: Simplify right side
    70,412.88x = 3,748,791,510.60
  5. Step 5: Solve for x
    x = 3,748,791,510.60/70,412.88
  6. Step 6: Final answer
    x = 53,240.14

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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.