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Finding the Fourth Proportional to 70,398.37, 97,149.78 and 38,567.38

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Solution

The fourth proportional to 70,398.37, 97,149.78 and 38,567.38 is: 53,223.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,398.37 : 97,149.78 = 38,567.38 : x
  2. Step 2: Convert to fraction form
    70,398.37/97,149.78 = 38,567.38/x
  3. Step 3: Cross multiply
    70,398.37x = 97,149.78 × 38,567.38
  4. Step 4: Simplify right side
    70,398.37x = 3,746,812,482.18
  5. Step 5: Solve for x
    x = 3,746,812,482.18/70,398.37
  6. Step 6: Final answer
    x = 53,223.00

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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.