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Finding the Fourth Proportional to 70,681.77, 106,058.55 and 47,005.80

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Solution

The fourth proportional to 70,681.77, 106,058.55 and 47,005.80 is: 70,532.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,681.77 : 106,058.55 = 47,005.80 : x
  2. Step 2: Convert to fraction form
    70,681.77/106,058.55 = 47,005.80/x
  3. Step 3: Cross multiply
    70,681.77x = 106,058.55 × 47,005.80
  4. Step 4: Simplify right side
    70,681.77x = 4,985,366,989.59
  5. Step 5: Solve for x
    x = 4,985,366,989.59/70,681.77
  6. Step 6: Final answer
    x = 70,532.57

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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.