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Finding the Fourth Proportional to 70,547.28, 97,356.42 and 38,719.14

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Solution

The fourth proportional to 70,547.28, 97,356.42 and 38,719.14 is: 53,433.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,547.28 : 97,356.42 = 38,719.14 : x
  2. Step 2: Convert to fraction form
    70,547.28/97,356.42 = 38,719.14/x
  3. Step 3: Cross multiply
    70,547.28x = 97,356.42 × 38,719.14
  4. Step 4: Simplify right side
    70,547.28x = 3,769,556,855.88
  5. Step 5: Solve for x
    x = 3,769,556,855.88/70,547.28
  6. Step 6: Final answer
    x = 53,433.06

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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.