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Finding the Fourth Proportional to 70,946.40, 97,969.32 and 67,585.44

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Solution

The fourth proportional to 70,946.40, 97,969.32 and 67,585.44 is: 93,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,946.40 : 97,969.32 = 67,585.44 : x
  2. Step 2: Convert to fraction form
    70,946.40/97,969.32 = 67,585.44/x
  3. Step 3: Cross multiply
    70,946.40x = 97,969.32 × 67,585.44
  4. Step 4: Simplify right side
    70,946.40x = 6,621,299,598.70
  5. Step 5: Solve for x
    x = 6,621,299,598.70/70,946.40
  6. Step 6: Final answer
    x = 93,328.20

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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.