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Finding the Fourth Proportional to 70,681.53, 106,058.17 and 47,005.54

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Solution

The fourth proportional to 70,681.53, 106,058.17 and 47,005.54 is: 70,532.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,681.53 : 106,058.17 = 47,005.54 : x
  2. Step 2: Convert to fraction form
    70,681.53/106,058.17 = 47,005.54/x
  3. Step 3: Cross multiply
    70,681.53x = 106,058.17 × 47,005.54
  4. Step 4: Simplify right side
    70,681.53x = 4,985,321,699.89
  5. Step 5: Solve for x
    x = 4,985,321,699.89/70,681.53
  6. Step 6: Final answer
    x = 70,532.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.