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Finding the Fourth Proportional to 70,946.90, 97,970.01 and 67,585.94

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Solution

The fourth proportional to 70,946.90, 97,970.01 and 67,585.94 is: 93,328.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,946.90 : 97,970.01 = 67,585.94 : x
  2. Step 2: Convert to fraction form
    70,946.90/97,970.01 = 67,585.94/x
  3. Step 3: Cross multiply
    70,946.90x = 97,970.01 × 67,585.94
  4. Step 4: Simplify right side
    70,946.90x = 6,621,395,217.66
  5. Step 5: Solve for x
    x = 6,621,395,217.66/70,946.90
  6. Step 6: Final answer
    x = 93,328.89

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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.