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Finding the Fourth Proportional to 70,564.84, 97,386.39 and 40,354.62

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Solution

The fourth proportional to 70,564.84, 97,386.39 and 40,354.62 is: 55,693.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,564.84 : 97,386.39 = 40,354.62 : x
  2. Step 2: Convert to fraction form
    70,564.84/97,386.39 = 40,354.62/x
  3. Step 3: Cross multiply
    70,564.84x = 97,386.39 × 40,354.62
  4. Step 4: Simplify right side
    70,564.84x = 3,929,990,396.42
  5. Step 5: Solve for x
    x = 3,929,990,396.42/70,564.84
  6. Step 6: Final answer
    x = 55,693.32

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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.