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Finding the Fourth Proportional to 70,547.58, 97,358.01 and 38,718.21

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Solution

The fourth proportional to 70,547.58, 97,358.01 and 38,718.21 is: 53,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,547.58 : 97,358.01 = 38,718.21 : x
  2. Step 2: Convert to fraction form
    70,547.58/97,358.01 = 38,718.21/x
  3. Step 3: Cross multiply
    70,547.58x = 97,358.01 × 38,718.21
  4. Step 4: Simplify right side
    70,547.58x = 3,769,527,876.36
  5. Step 5: Solve for x
    x = 3,769,527,876.36/70,547.58
  6. Step 6: Final answer
    x = 53,432.42

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Double scale
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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.