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Finding the Fourth Proportional to 70,706.04, 97,574.70 and 38,877

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Solution

The fourth proportional to 70,706.04, 97,574.70 and 38,877 is: 53,650.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,706.04 : 97,574.70 = 38,877 : x
  2. Step 2: Convert to fraction form
    70,706.04/97,574.70 = 38,877/x
  3. Step 3: Cross multiply
    70,706.04x = 97,574.70 × 38,877
  4. Step 4: Simplify right side
    70,706.04x = 3,793,411,611.90
  5. Step 5: Solve for x
    x = 3,793,411,611.90/70,706.04
  6. Step 6: Final answer
    x = 53,650.46

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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.